fix(app): restore playback and state lifecycle contracts

lib/database/app_database.dart

@@ -83,8 +83,9 @@ class AppDatabase extends _$AppDatabase {
   static final Object _durabilityZoneKey = Object();
   static final SerialFutureQueue _tvosRecoveryQueue = SerialFutureQueue();
 
-  /// Resolves and opens the production database, then reconciles tvOS
-  /// recovery before returning it to startup consumers.
+  /// Resolves and opens the production database, eagerly completing Drift
+  /// setup and migrations on non-tvOS before returning. tvOS recovery retains
+  /// ownership of database access ordering.
   static Future<AppDatabaseBootstrap> open({
     bool isTvos = const bool.fromEnvironment('TVOS_BUILD'),
     File? databaseFile,
@@ -110,6 +111,13 @@ class AppDatabase extends _$AppDatabase {
     final store = recoveryStore ?? TvosDatabaseRecoveryStore(prefs, isTvos: isTvos);
     final database = AppDatabase._((executorFactory ?? _createNativeDatabase)(file), recoveryStore: store);
     try {
+      if (!isTvos) {
+        // Drift executors open lazily. Force the connection through setup and
+        // migrations while failures are still covered by this close/rethrow
+        // boundary and the caller's startup download-recovery decision.
+        await database.customSelect('SELECT 1').get();
+        // It deliberately does not claim capacity for a later write.
+      }
       final outcome = await _tvosRecoveryQueue.run(
         () => store.reconcile(
           databaseExisted: databaseExisted,

lib/focus/focusable_wrapper.dart

@@ -145,6 +145,14 @@ class FocusableWrapper extends StatefulWidget {
   /// Optional current value announced after [semanticLabel].
   final String? semanticValue;
 
+  /// Whether this wrapper replaces semantics contributed by [child].
+  ///
+  /// The default (`true`) replacement mode produces one operable control node for
+  /// labeled wrappers. Set this to `false` only to supplement non-interactive
+  /// child content; a child that already owns a role or actions would conflict
+  /// with this wrapper's button and activation semantics.
+  final bool excludeChildSemantics;
+
   /// Optional checked state for toggle-style controls.
   final bool? checked;
 
@@ -211,6 +219,7 @@ class FocusableWrapper extends StatefulWidget {
     this.useComfortableZone = false,
     this.semanticLabel,
     this.semanticValue,
+    this.excludeChildSemantics = true,
     this.checked,
     this.canRequestFocus = true,
     this.onKeyEvent,
@@ -594,7 +603,7 @@ class _FocusableWrapperState extends State<FocusableWrapper> with SingleTickerPr
         checked: widget.checked,
         onTap: widget.onSelect,
         onLongPress: widget.onLongPress,
-        excludeSemantics: true,
+        excludeSemantics: widget.excludeChildSemantics,
         child: result,
       );
     }

lib/media/media_server_client.dart

@@ -159,12 +159,17 @@ abstract class MediaServerClient {
   /// children).
   Future<void> refreshLibraryMetadata(String libraryId);
 
-  /// Fetch a single item by its backend-opaque id. Returns `null` when the
-  /// item no longer exists or the user can't see it.
+  /// Fetch a single item by its backend-opaque id. An online HTTP 404 returns
+  /// `null`; every other HTTP status remains an error. Implementations may use
+  /// cached metadata while explicitly offline or after a classified transient
+  /// transport failure, but must not turn other online failures into stale
+  /// success.
   Future<MediaItem?> fetchItem(String id);
 
   /// Fetch a single item *and* its on-deck episode (the next unwatched /
   /// in-progress episode) in one round-trip when the backend supports it.
+  /// The item follows [fetchItem]'s error contract: an online HTTP 404 returns
+  /// both nullable fields as `null`, while every other HTTP status throws.
   /// Plex bundles both via `/library/metadata/{id}?includeOnDeck=1`;
   /// Jellyfin has no equivalent endpoint and returns `onDeckEpisode: null`,
   /// leaving callers to fetch on-deck separately if they need it.
@@ -719,7 +724,12 @@ abstract interface class SeasonEpisodePagingClient {
 /// shared base class isn't an option, but a `mixin on MediaServerClient` is.
 mixin MediaServerCacheMixin implements MediaServerClient {
   /// Fetch with cache fallback: offline → cached only; online → try network,
-  /// cache the result, fall back to cached on any error.
+  /// cache the result, then fall back to cached data on an accepted error.
+  ///
+  /// When [shouldFallback] is omitted, every error remains eligible for cache
+  /// fallback. A supplied selector narrows that policy; rejected errors are
+  /// rethrown unchanged before the fallback cache is read. Response-parser
+  /// failures can therefore be propagated instead of hidden by stale data.
   ///
   /// Returns `null` when offline mode is on and no cached row exists, or
   /// when both network and cache come up empty.
@@ -728,6 +738,7 @@ mixin MediaServerCacheMixin implements MediaServerClient {
     required Future<MediaServerResponse> Function() networkCall,
     required T? Function(dynamic cachedData) parseCache,
     required T? Function(MediaServerResponse response) parseResponse,
+    bool Function(Object error)? shouldFallback,
     bool cacheResponse = true,
   }) async {
     final cacheScope = ServerId(cacheServerId);
@@ -744,6 +755,7 @@ mixin MediaServerCacheMixin implements MediaServerClient {
       }
       return parseResponse(response);
     } catch (e) {
+      if (shouldFallback != null && !shouldFallback(e)) rethrow;
       appLogger.w('Network request failed for $cacheKey, trying cache', error: e);
       final cached = await cache.get(cacheScope, cacheKey);
       if (cached != null) return parseCache(cached);

lib/navigation/profile_session_screen.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 
 import 'package:flutter/material.dart';
+import 'package:http/http.dart' as http;
 import 'package:provider/provider.dart';
 
 import '../connection/connection_registry.dart';
@@ -58,7 +59,8 @@ CatalogSourcesProvider _createCatalogSourcesProvider(BuildContext context) {
 /// on the root navigator so they survive this subtree being replaced.
 class ProfileSessionScreen extends StatefulWidget {
   const ProfileSessionScreen({super.key, this.isOfflineMode = false, this.initialPromptHandled = false})
-    : profileShellBuilder = null;
+    : profileShellBuilder = null,
+      trackerHttpClientFactory = null;
 
   @visibleForTesting
   const ProfileSessionScreen.forTesting({
@@ -66,11 +68,13 @@ class ProfileSessionScreen extends StatefulWidget {
     this.isOfflineMode = false,
     this.initialPromptHandled = false,
     required this.profileShellBuilder,
-  });
+    required http.Client Function() httpClientFactory,
+  }) : trackerHttpClientFactory = httpClientFactory;
 
   final bool isOfflineMode;
   final bool initialPromptHandled;
   final WidgetBuilder? profileShellBuilder;
+  final http.Client Function()? trackerHttpClientFactory;
 
   @override
   State<ProfileSessionScreen> createState() => _ProfileSessionScreenState();
@@ -146,7 +150,7 @@ class _ProfileSessionScreenState extends State<ProfileSessionScreen> {
               ),
               ChangeNotifierProvider(
                 create: (context) {
-                  final provider = TraktAccountProvider();
+                  final provider = TraktAccountProvider(httpClientFactory: widget.trackerHttpClientFactory);
                   unawaited(
                     provider.onActiveProfileChanged(activeId).catchError((Object e, StackTrace s) {
                       appLogger.w('Trakt profile hydrate failed', error: e, stackTrace: s);
@@ -157,7 +161,7 @@ class _ProfileSessionScreenState extends State<ProfileSessionScreen> {
               ),
               ChangeNotifierProvider(
                 create: (context) {
-                  final provider = TrackersProvider();
+                  final provider = TrackersProvider(httpClientFactory: widget.trackerHttpClientFactory);
                   unawaited(
                     provider.onActiveProfileChanged(activeId).catchError((Object e, StackTrace s) {
                       appLogger.w('Trackers profile hydrate failed', error: e, stackTrace: s);

lib/providers/trackers_provider.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 
 import 'package:flutter/foundation.dart';
+import 'package:http/http.dart' as http;
 
 import '../models/trackers/device_code.dart';
 import '../services/trackers/anilist/anilist_auth_service.dart';
@@ -34,17 +35,33 @@ typedef TrackerSessionConnectPipeline =
 /// Plex profile. Single rebind seam: [onActiveProfileChanged] loads all three
 /// sessions from their stores and pushes them to their trackers.
 class TrackersProvider extends ChangeNotifier with DisposableChangeNotifierMixin {
-  TrackersProvider() : this._(runConnectPipeline<TrackerSession>);
+  /// [httpClientFactory] must return a fresh client for each eager auth owner.
+  /// Every returned client is closed when this provider is disposed.
+  TrackersProvider({http.Client Function()? httpClientFactory})
+    : this._(runConnectPipeline<TrackerSession>, httpClientFactory);
 
   @visibleForTesting
-  TrackersProvider.forTesting({required TrackerSessionConnectPipeline connectPipeline}) : this._(connectPipeline);
+  TrackersProvider.forTesting({
+    required TrackerSessionConnectPipeline connectPipeline,
+    http.Client Function()? httpClientFactory,
+  }) : this._(connectPipeline, httpClientFactory);
 
-  TrackersProvider._(this._connectPipeline);
+  TrackersProvider._(this._connectPipeline, http.Client Function()? httpClientFactory)
+    : _malAuth = httpClientFactory == null
+          ? MalAuthService()
+          : MalAuthService(
+              proxy: OAuthProxyClient(httpClient: httpClientFactory()),
+              httpClient: httpClientFactory(),
+            ),
+      _anilistAuth = httpClientFactory == null
+          ? AnilistAuthService()
+          : AnilistAuthService(proxy: OAuthProxyClient(httpClient: httpClientFactory())),
+      _simklAuth = httpClientFactory == null ? SimklAuthService() : SimklAuthService(httpClient: httpClientFactory());
 
   final TrackerSessionConnectPipeline _connectPipeline;
-  final MalAuthService _malAuth = MalAuthService();
-  final AnilistAuthService _anilistAuth = AnilistAuthService();
-  final SimklAuthService _simklAuth = SimklAuthService();
+  final MalAuthService _malAuth;
+  final AnilistAuthService _anilistAuth;
+  final SimklAuthService _simklAuth;
   final TrackerAccountStore _malStore = trackerAccountStore(TrackerService.mal);
   final TrackerAccountStore _anilistStore = trackerAccountStore(TrackerService.anilist);
   final TrackerAccountStore _simklStore = trackerAccountStore(TrackerService.simkl);

lib/providers/trakt_account_provider.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 
 import 'package:flutter/foundation.dart';
+import 'package:http/http.dart' as http;
 
 import '../mixins/disposable_change_notifier_mixin.dart';
 import '../models/trackers/device_code.dart';
@@ -19,7 +20,12 @@ import '../services/trakt/trakt_sync_service.dart';
 /// Single rebind seam: `onActiveProfileChanged` loads the new profile's
 /// session and pushes it to both `TraktScrobbleService` and `TraktSyncService`.
 class TraktAccountProvider extends ChangeNotifier with DisposableChangeNotifierMixin {
-  final TraktAuthService _auth = TraktAuthService();
+  /// Each client returned by [httpClientFactory] is owned by this provider and
+  /// closed when the provider is disposed.
+  TraktAccountProvider({http.Client Function()? httpClientFactory})
+    : _auth = httpClientFactory == null ? TraktAuthService() : TraktAuthService(httpClient: httpClientFactory());
+
+  final TraktAuthService _auth;
   final TrackerAccountStore _store = trackerAccountStore(TrackerService.trakt);
 
   TrackerSession? _session;

lib/screens/explore_screen.dart

@@ -188,6 +188,7 @@ class ExploreScreenState extends State<ExploreScreen>
       menuKey: _sourceMenuKey,
       tooltip: t.explore.selectSource,
       semanticLabel: t.explore.selectSource,
+      semanticValue: active.displayName,
       anchorAlignment: anchorAlignment,
       onSelected: (id) => unawaited(sources.setActiveSource(id)),
       itemBuilder: (context) => _sourceMenuEntries(sources, active),

lib/screens/settings/hotkey_recorder_widget.dart

@@ -131,6 +131,7 @@ class _HotKeyRecorderWidgetState extends State<HotKeyRecorderWidget> {
                         onNavigateRight: canEdit && hasShortcut ? _clearFocusNode.requestFocus : null,
                         onNavigateDown: (canSave ? _saveFocusNode : _cancelFocusNode).requestFocus,
                         semanticLabel: recordLabel,
+                        semanticValue: _recordedHotKey == null ? null : formatHotKeyDisplay(_recordedHotKey!),
                         descendantsAreFocusable: false,
                         useBackgroundFocus: true,
                         child: GestureDetector(

lib/screens/video_player/completion_latch.dart

@@ -1,4 +1,5 @@
 import 'dart:math' as math;
+import '../../providers/playback_state_provider.dart';
 
 /// Position must be within this many ms of the best-known duration for a
 /// player EOF signal to count as the real end of the media.
@@ -13,12 +14,17 @@ const int spuriousEofToleranceMs = 10000;
 /// How a player EOF signal should be interpreted.
 enum EofSignalClass { genuine, spurious, unknown }
 
-/// End-of-media action after considering adjacent-episode discovery.
+/// End-of-media action after considering queue adjacency discovery.
 enum CompletionNavigationAction { presentNext, retryAdjacent, exit }
 
-CompletionNavigationAction completionNavigationAction({required bool hasNext, required bool adjacentLoadFailed}) {
+CompletionNavigationAction completionNavigationAction({
+  required bool hasNext,
+  required QueueNavigationStatus adjacentStatus,
+}) {
   if (hasNext) return CompletionNavigationAction.presentNext;
-  if (adjacentLoadFailed) return CompletionNavigationAction.retryAdjacent;
+  if (adjacentStatus == QueueNavigationStatus.failed) {
+    return CompletionNavigationAction.retryAdjacent;
+  }
   return CompletionNavigationAction.exit;
 }
 

lib/screens/video_player/parts/build.dart

@@ -64,8 +64,11 @@ extension _VideoPlayerBuildMethods on VideoPlayerScreenState {
     return const PlaybackSourceSubtitleChoice.off();
   }
 
+  List<PlaybackSubtitleSidecar> _sourceSubtitleSidecarsForControls() =>
+      _playbackSession?.context.result.subtitleSidecars ?? const <PlaybackSubtitleSidecar>[];
+
   List<MediaSubtitleTrack> _sourceSubtitleTracksForControls() {
-    final sidecarSourceIds = _sourceSubtitleSidecarIdsForControls();
+    final sidecarSourceIds = {for (final sidecar in _sourceSubtitleSidecarsForControls()) ?sidecar.sourceStreamId};
     return selectableSourceSubtitleTracks(
       _currentMediaInfo?.subtitleTracks ?? const <MediaSubtitleTrack>[],
       isTranscoding: _isTranscoding,
@@ -74,13 +77,6 @@ extension _VideoPlayerBuildMethods on VideoPlayerScreenState {
     );
   }
 
-  Set<int> _sourceSubtitleSidecarIdsForControls() {
-    return {
-      for (final sidecar in _playbackSession?.context.result.subtitleSidecars ?? const <PlaybackSubtitleSidecar>[])
-        ?sidecar.sourceStreamId,
-    };
-  }
-
   Widget _buildLoadingSpinner() {
     return const Scaffold(
       backgroundColor: Colors.black,
@@ -273,8 +269,8 @@ extension _VideoPlayerBuildMethods on VideoPlayerScreenState {
                     }
 
                     final sourceAudioTracks = _currentMediaInfo?.audioTracks ?? const <MediaAudioTrack>[];
+                    final sourceSubtitleSidecars = _sourceSubtitleSidecarsForControls();
                     final sourceSubtitleTracks = _sourceSubtitleTracksForControls();
-                    final sourceSubtitleSidecarIds = _sourceSubtitleSidecarIdsForControls();
 
                     return Video(
                       player: player!,
@@ -296,7 +292,7 @@ extension _VideoPlayerBuildMethods on VideoPlayerScreenState {
                         sourceSubtitleTracks: sourceSubtitleTracks,
                         selectedSubtitleChoice: _selectedSourceSubtitleChoiceForControls(sourceSubtitleTracks),
                         selectedSecondarySubtitleStreamId: _playbackSession?.subtitleSelection.secondarySourceStreamId,
-                        sourceSubtitleSidecarIds: sourceSubtitleSidecarIds,
+                        sourceSubtitleSidecars: sourceSubtitleSidecars,
                         sourcePartId: _currentMediaInfo?.partId,
                         onPlaybackSourceChanged: _switchPlaybackSource,
                         onTogglePIPMode: _togglePIPMode,

lib/screens/video_player/parts/playback_prompts.dart

@@ -42,7 +42,7 @@ extension _VideoPlayerPlaybackPromptMethods on VideoPlayerScreenState {
 
     var navigationAction = completionNavigationAction(
       hasNext: _nextEpisode != null,
-      adjacentLoadFailed: _currentMetadata.isEpisode && _nextEpisodeStatus == QueueNavigationStatus.failed,
+      adjacentStatus: _nextEpisodeStatus,
     );
     if (navigationAction == CompletionNavigationAction.retryAdjacent) {
       _isResolvingCompletionAdjacency = true;
@@ -52,10 +52,7 @@ extension _VideoPlayerPlaybackPromptMethods on VideoPlayerScreenState {
         _isResolvingCompletionAdjacency = false;
       }
       if (!mounted) return;
-      navigationAction = completionNavigationAction(
-        hasNext: _nextEpisode != null,
-        adjacentLoadFailed: _currentMetadata.isEpisode && _nextEpisodeStatus == QueueNavigationStatus.failed,
-      );
+      navigationAction = completionNavigationAction(hasNext: _nextEpisode != null, adjacentStatus: _nextEpisodeStatus);
       if (navigationAction == CompletionNavigationAction.retryAdjacent) {
         _completionLatch.latch();
         showGlobalErrorSnackBar(t.messages.errorLoadingSeries);

lib/screens/video_player_screen.dart

@@ -342,6 +342,8 @@ class VideoPlayerScreenState extends State<VideoPlayerScreen> with WidgetsBindin
   late MediaItem _currentMetadata;
   MediaItem? _nextEpisode;
   MediaItem? _previousEpisode;
+  // Retryable sentinel until the fire-and-forget initial adjacency load
+  // commits found, boundary, or unavailable.
   QueueNavigationStatus _nextEpisodeStatus = QueueNavigationStatus.failed;
   bool _isResolvingCompletionAdjacency = false;
   bool _isLoadingNext = false;

lib/services/episode_navigation_service.dart

@@ -41,17 +41,18 @@ class AdjacentEpisodes {
 
 enum _EpisodeQueueAvailability { active, unavailable, failed }
 
-/// Manages episode navigation for TV show playback.
+/// Manages queue-based adjacency for video playback.
 ///
 /// Handles:
-/// - Loading next/previous episodes from play queues
+/// - Loading next/previous items from verified play queues
+/// - Building episode-series fallback queues when needed
 /// - Navigating between episodes while preserving track selections
 /// - Supporting both sequential and shuffle playback modes
 ///
 /// Plex normally enters with its server-side `/playQueues` queue. If that
-/// setup failed, the same client-side full-series path used by Jellyfin is
-/// used as a fallback. Both paths publish into [PlaybackStateProvider] so
-/// the player reads previous/next from one source.
+/// setup failed for an episode, the same client-side full-series path used by
+/// Jellyfin is used as a fallback. Playlist and collection queues may contain
+/// movies; once membership is verified, they use the same adjacency path.
 class EpisodeNavigationService {
   /// Cached client-side episode lists, keyed by `seriesId`. Populated for
   /// Jellyfin and when Plex's server-side queue is unavailable. Fetched once
@@ -69,12 +70,11 @@ class EpisodeNavigationService {
   /// holding ~5–10 MB of metadata when the user wanders the library.
   static const int _seriesCacheCapacity = 5;
 
-  /// Load the next and previous episodes for the current episode
+  /// Load the next and previous items for the current video.
   ///
-  /// Returns null for episodes if:
-  /// - Not applicable (e.g., movie content)
-  /// - Next episode doesn't exist (end of season/series)
-  /// - Previous episode doesn't exist (first episode)
+  /// Series queue construction is episode-only. Movies can still resolve
+  /// adjacency when they are proven members of the active playlist or
+  /// collection queue.
   ///
   /// [playedPartId] is the backend part id actually being played, when
   /// known — it lets the queue skip sibling entries of a Plex
@@ -131,19 +131,19 @@ class EpisodeNavigationService {
 
   /// Ensure [PlaybackStateProvider] holds a queue covering the current item.
   /// A queue the item already belongs to (launcher-seeded shuffle, playlist,
-  /// collection, or an earlier series build) is preserved. Otherwise the
-  /// backend's full series episode list is published, anchored at the current
-  /// episode. For Plex this is the fallback when `/playQueues` was
-  /// unavailable; for Jellyfin it is the normal queue path.
+  /// collection, or an earlier series build) is preserved for both movies and
+  /// episodes. Otherwise an episode's full backend series list is published,
+  /// anchored at the current episode. For Plex this series build is the
+  /// fallback when `/playQueues` was unavailable; for Jellyfin it is the
+  /// normal episode path.
   Future<_EpisodeQueueAvailability> _ensureLocalEpisodeQueue(
     MultiServerManager serverManager,
     PlaybackStateProvider playbackState,
     MediaItem metadata,
   ) async {
-    if (metadata.serverId == null || !metadata.isEpisode || metadata.grandparentId == null) {
-      return _EpisodeQueueAvailability.unavailable;
-    }
-    final seriesId = metadata.grandparentId!;
+    // Queue membership and current-cursor identity are media-kind agnostic.
+    // Prove them before applying the episode-only series-build prerequisites
+    // so playlist and collection movies retain their launcher-seeded queue.
     // Preserve any queue this item already belongs to — a launcher-seeded
     // shuffled show queue (contextKey == seriesId), a playlist/collection
     // queue, or a series queue this method built earlier. setCurrentItem
@@ -154,14 +154,18 @@ class EpisodeNavigationService {
       playbackState.setCurrentItem(metadata);
       return _EpisodeQueueAvailability.active;
     }
-    // Same-episode reload with a fresh object: a source/quality switch hands
+    // Same-item reload with a fresh object: a source/quality switch hands
     // _reloadMediaInPlace a copyWith clone of the playing item, and MediaItem
     // compares by identity, so the membership gate above misses. The cursor
-    // already points at this episode — the queue (and any shuffled order)
-    // must survive.
+    // already points at this item — the queue (and any shuffled order) must
+    // survive.
     if (playbackState.isQueueActive && playbackState.currentQueueItem?.globalKey == metadata.globalKey) {
       return _EpisodeQueueAvailability.active;
     }
+    if (metadata.serverId == null || !metadata.isEpisode || metadata.grandparentId == null) {
+      return playbackState.isQueueActive ? _EpisodeQueueAvailability.failed : _EpisodeQueueAvailability.unavailable;
+    }
+    final seriesId = metadata.grandparentId!;
     // The playing item isn't in the active queue. Still don't replace a
     // playlist/collection queue with a series queue: the launcher (e.g.
     // [JellyfinSequentialLauncher]) sets contextKey to the playlist or

lib/services/music/music_playback_service_impl.dart

@@ -144,13 +144,17 @@ class MusicPlaybackServiceImpl extends MusicPlaybackService with WidgetsBindingO
   /// Identifies the queue session that asynchronous enqueue work belongs to.
   int _queueSessionRevision = 0;
 
-  /// Gapless arm work is serialized, and each requested recomputation gets
-  /// a revision. This prevents an older resolve/setNext continuation from
-  /// landing after a queue edit, repeat change, or sleep-timer change.
+  /// Gapless arm work is serialized into one latest-request slot. The
+  /// generation stales continuations while the pending flag distinguishes
+  /// an explicit recomputation request from cancellation-only invalidation.
   int _armRequestGeneration = 0;
-  int _processedArmRequestGeneration = 0;
+  bool _armRequestPending = false;
   Future<void>? _armDrain;
 
+  /// The generation whose replacement [Player.open] has not committed yet.
+  /// Requests remain pending while an open owns the native playlist.
+  int? _openingGeneration;
+
   int _consecutiveFailures = 0;
   bool _resumeAfterInterruption = false;
   bool _disposed = false;
@@ -309,62 +313,80 @@ class MusicPlaybackServiceImpl extends MusicPlaybackService with WidgetsBindingO
   Future<void> _openCurrent(int generation, {bool play = true}) async {
     final track = _queue.current;
     if (track == null) return;
-    _currentTrack = track;
-    _currentSource = null;
-    _armed = null;
-    _staleArm = null;
-    _setStatus(MusicPlaybackStatus.loading, forceNotify: true);
-
-    await _coordinator.claimMusic();
-    if (generation != _generation) return;
-    final player = _ensurePlayer();
-    _ensureMediaControls();
-    // Re-asserted per open (cheap, idempotent): the native side drops the
-    // background-mode opt-in when the user swipes the task away, so a
-    // session that survives task removal heals itself here.
-    unawaited(_mediaControls?.setBackgroundMode(true));
-
-    // Clear any native arm left over from the previous item before the open
-    // replaces it, so a stray transition can't fire mid-switch.
+    _openingGeneration = generation;
+    Player? committedPlayer;
     try {
-      await player.setNext(null);
-    } catch (e) {
-      appLogger.d('setNext(null) before open failed', error: e);
-    }
+      _currentTrack = track;
+      _currentSource = null;
+      _armed = null;
+      _staleArm = null;
+      _setStatus(MusicPlaybackStatus.loading, forceNotify: true);
 
-    MusicSource source;
-    try {
-      source = await _resolver.resolve(track);
-    } catch (e, st) {
-      appLogger.w('Music source resolve failed for ${track.id}', error: e, stackTrace: st);
-      if (generation == _generation) _handlePlaybackFailure(e);
-      return;
-    }
-    if (generation != _generation || _player != player) return;
-    _currentSource = source;
+      await _coordinator.claimMusic();
+      if (generation != _generation) return;
+      final player = _ensurePlayer();
+      _ensureMediaControls();
+      // Re-asserted per open (cheap, idempotent): the native side drops the
+      // background-mode opt-in when the user swipes the task away, so a
+      // session that survives task removal heals itself here.
+      unawaited(_mediaControls?.setBackgroundMode(true));
 
-    // Claim audio focus before audio starts so other media apps pause (mpv
-    // has no built-in focus handling; harmless no-op off Android). Result is
-    // ignored — mirrors the video screen, playback proceeds either way.
-    try {
-      await player.requestAudioFocus();
-    } catch (e) {
-      appLogger.d('Audio focus request failed', error: e);
-    }
-    if (generation != _generation || _player != player) return;
+      // Clear any native arm left over from the previous item before the open
+      // replaces it, so a stray transition can't fire mid-switch.
+      try {
+        await player.setNext(null);
+      } catch (e) {
+        appLogger.d('setNext(null) before open failed', error: e);
+      }
 
-    try {
-      await player.open(Media(source.url, headers: source.headers), play: play);
-    } catch (e, st) {
-      appLogger.w('Music open failed for ${track.id}', error: e, stackTrace: st);
-      if (generation == _generation) _handlePlaybackFailure(e);
-      return;
-    }
-    if (generation != _generation || _player != player) return;
+      MusicSource source;
+      try {
+        source = await _resolver.resolve(track);
+      } catch (e, st) {
+        appLogger.w('Music source resolve failed for ${track.id}', error: e, stackTrace: st);
+        if (generation == _generation) _handlePlaybackFailure(e);
+        return;
+      }
+      if (generation != _generation || _player != player) return;
+      _currentSource = source;
 
-    _setStatus(play ? MusicPlaybackStatus.playing : MusicPlaybackStatus.paused);
-    _bindTrackServices(track, source);
-    _requestArmNext();
+      // Claim audio focus before audio starts so other media apps pause (mpv
+      // has no built-in focus handling; harmless no-op off Android). Result is
+      // ignored — mirrors the video screen, playback proceeds either way.
+      try {
+        await player.requestAudioFocus();
+      } catch (e) {
+        appLogger.d('Audio focus request failed', error: e);
+      }
+      if (generation != _generation || _player != player) return;
+
+      try {
+        await player.open(Media(source.url, headers: source.headers), play: play);
+      } catch (e, st) {
+        appLogger.w('Music open failed for ${track.id}', error: e, stackTrace: st);
+        if (generation == _generation) _handlePlaybackFailure(e);
+        return;
+      }
+      if (generation != _generation || _player != player) return;
+
+      committedPlayer = player;
+      _setStatus(play ? MusicPlaybackStatus.playing : MusicPlaybackStatus.paused);
+      _bindTrackServices(track, source);
+    } finally {
+      // A stale open must never release a newer open's ownership. Only a
+      // committed current open schedules its successor; an unsuccessful
+      // current open cancels requests collected while it was unresolved.
+      if (_openingGeneration == generation) {
+        _openingGeneration = null;
+        if (committedPlayer != null && !_disposed && generation == _generation && _player == committedPlayer) {
+          _requestArmNext();
+        } else if (generation == _generation) {
+          _invalidateArmRequests();
+        } else {
+          _ensureArmDrain();
+        }
+      }
+    }
   }
 
   /// Manual advance: finalize the current tracker at its current position and
@@ -428,28 +450,34 @@ class MusicPlaybackServiceImpl extends MusicPlaybackService with WidgetsBindingO
   }
 
   bool _isCurrentArmRequest(Player player, int generation, int armRequest) {
-    return !_disposed && generation == _generation && armRequest == _armRequestGeneration && _player == player;
+    return !_disposed &&
+        _openingGeneration == null &&
+        generation == _generation &&
+        armRequest == _armRequestGeneration &&
+        _player == player;
   }
 
   void _requestArmNext() {
     if (_disposed) return;
     _armRequestGeneration++;
+    _armRequestPending = true;
     _ensureArmDrain();
   }
 
   void _invalidateArmRequests() {
     _armRequestGeneration++;
+    _armRequestPending = false;
   }
 
   void _ensureArmDrain() {
-    if (_disposed || _armDrain != null) return;
+    if (_disposed || !_armRequestPending || _openingGeneration != null || _armDrain != null) return;
     final drain = _drainArmRequests();
     _armDrain = drain;
     unawaited(
       drain.whenComplete(() {
         if (_armDrain != drain) return;
         _armDrain = null;
-        if (!_disposed && _processedArmRequestGeneration != _armRequestGeneration) {
+        if (!_disposed && _armRequestPending && _openingGeneration == null) {
           _ensureArmDrain();
         }
       }),
@@ -457,12 +485,11 @@ class MusicPlaybackServiceImpl extends MusicPlaybackService with WidgetsBindingO
   }
 
   Future<void> _drainArmRequests() async {
-    while (!_disposed) {
+    while (!_disposed && _armRequestPending && _openingGeneration == null) {
       final armRequest = _armRequestGeneration;
       final generation = _generation;
+      _armRequestPending = false;
       await _applyArmNext(generation, armRequest);
-      _processedArmRequestGeneration = armRequest;
-      if (armRequest == _armRequestGeneration) return;
     }
   }
 

lib/services/plex_client.dart

@@ -239,6 +239,8 @@ bool? _parsePlexTranscoderVideoCapability(Object? value) {
   };
 }
 
+bool _shouldFallbackPlexItemLookup(Object error) => error is MediaServerHttpException && error.isTransient;
+
 class _PlexMediaProviderState {
   const _PlexMediaProviderState({
     required this.libraries,
@@ -1071,7 +1073,10 @@ class PlexClient
   /// Uses cache when offline or as fallback on network error
   /// Note: OnDeck data is not relevant for offline mode
   /// Always fetches with chapters/markers but caches at base endpoint
-  Future<Map<String, dynamic>> getMetadataWithImagesAndOnDeck(String ratingKey) async {
+  Future<Map<String, dynamic>> getMetadataWithImagesAndOnDeck(
+    String ratingKey, {
+    bool Function(Object error)? shouldFallback,
+  }) async {
     // Cache key is always the base endpoint (no query params)
     final cacheKey = '/library/metadata/$ratingKey';
 
@@ -1079,6 +1084,7 @@ class PlexClient
     // because OnDeck is only available from network response, not cache
     return await fetchWithCacheFallback<Map<String, dynamic>>(
           cacheKey: cacheKey,
+          shouldFallback: shouldFallback,
           networkCall: () => _http.get(
             '/library/metadata/$ratingKey',
             queryParameters: {
@@ -1136,12 +1142,16 @@ class PlexClient
   /// Get metadata by rating key with images (includes clearLogo)
   /// Uses cache when offline or as fallback on network error
   /// Always fetches with chapters/markers but caches at base endpoint
-  Future<PlexMetadataDto?> _getMetadataWithImages(String ratingKey) async {
+  Future<PlexMetadataDto?> _getMetadataWithImages(
+    String ratingKey, {
+    bool Function(Object error)? shouldFallback,
+  }) async {
     // Cache key is always the base endpoint (no query params)
     final cacheKey = '/library/metadata/$ratingKey';
 
     return fetchWithCacheFallback<PlexMetadataDto>(
       cacheKey: cacheKey,
+      shouldFallback: shouldFallback,
       networkCall: () => _http.get(
         '/library/metadata/$ratingKey',
         queryParameters: {'includeChapters': 1, 'includeMarkers': 1, 'checkFiles': 1, 'includeStreams': 1},
@@ -2857,8 +2867,13 @@ class PlexClient
 
   @override
   Future<MediaItem?> fetchItem(String id) async {
-    final metadata = await _getMetadataWithImages(id);
-    return metadata == null ? null : PlexMappers.mediaItem(metadata);
+    try {
+      final metadata = await _getMetadataWithImages(id, shouldFallback: _shouldFallbackPlexItemLookup);
+      return metadata == null ? null : PlexMappers.mediaItem(metadata);
+    } on MediaServerHttpException catch (error) {
+      if (error.statusCode == 404) return null;
+      rethrow;
+    }
   }
 
   @override
@@ -3621,13 +3636,20 @@ class PlexClient
   /// Jellyfin has no analogous endpoint and returns onDeck=null there.
   @override
   Future<({MediaItem? item, MediaItem? onDeckEpisode})> fetchItemWithOnDeck(String id) async {
-    final result = await getMetadataWithImagesAndOnDeck(id);
-    final itemDto = result['metadata'] as PlexMetadataDto?;
-    final onDeckDto = result['onDeckEpisode'] as PlexMetadataDto?;
-    return (
-      item: itemDto == null ? null : PlexMappers.mediaItem(itemDto),
-      onDeckEpisode: onDeckDto == null ? null : PlexMappers.mediaItem(onDeckDto),
-    );
+    try {
+      final result = await getMetadataWithImagesAndOnDeck(id, shouldFallback: _shouldFallbackPlexItemLookup);
+      final itemDto = result['metadata'] as PlexMetadataDto?;
+      final onDeckDto = result['onDeckEpisode'] as PlexMetadataDto?;
+      return (
+        item: itemDto == null ? null : PlexMappers.mediaItem(itemDto),
+        onDeckEpisode: onDeckDto == null ? null : PlexMappers.mediaItem(onDeckDto),
+      );
+    } on MediaServerHttpException catch (error) {
+      if (error.statusCode == 404) {
+        return (item: null, onDeckEpisode: null);
+      }
+      rethrow;
+    }
   }
 
   @override

lib/services/track_manager.dart

@@ -259,30 +259,18 @@ class TrackManager {
     final hasAnyTracks = tracks.audio.isNotEmpty || tracks.subtitle.isNotEmpty;
     if (!hasAnyTracks) return false;
 
-    final info = mediaInfo;
-    if (info == null || info.subtitleTracks.isEmpty) return true;
-    if (tracks.subtitle.isEmpty) return false;
-
-    final nativeSubtitleTracks = tracks.subtitle
+    final realAudioTracks = tracks.audio
+        .where((track) => track.id != AudioTrack.auto.id && track.id != AudioTrack.off.id)
+        .toList(growable: false);
+    final realSubtitleTracks = tracks.subtitle
         .where((track) => track.id != SubtitleTrack.auto.id && track.id != SubtitleTrack.off.id)
         .toList(growable: false);
-    final preferred = preferredSubtitleTrack;
-    final preferredHasSemanticIdentity =
-        preferred != null &&
-        preferred.id != SubtitleTrack.off.id &&
-        (preferred.id.startsWith('source:') ||
-            preferred.uri != null ||
-            preferred.title != null ||
-            preferred.language != null);
-    if (preferredHasSemanticIdentity) {
-      final service = TrackSelectionService(metadata: metadata, plexMediaInfo: info);
-      return service.findBestSubtitleMatch(nativeSubtitleTracks, preferred) != null;
-    }
+    final service = TrackSelectionService(metadata: metadata, plexMediaInfo: mediaInfo);
+    final selectedAudioTrack = service.selectAudioTrack(realAudioTracks, preferredAudioTrack)?.track;
 
-    final serverSelectedTrack = info.subtitleTracks.where((track) => track.selected).firstOrNull;
-    if (serverSelectedTrack == null) return true;
-    return findMpvTrackForPlexSubtitle(serverSelectedTrack, nativeSubtitleTracks, allPlexTracks: info.subtitleTracks) !=
-        null;
+    // Selection owns the catalog-completeness decision. A null subtitle result
+    // is the only state in which a requested source track can still arrive.
+    return service.selectSubtitleTrack(realSubtitleTracks, preferredSubtitleTrack, selectedAudioTrack) != null;
   }
 
   /// Core track selection: delegates to [TrackSelectionService]. Returns

lib/services/track_selection_service.dart

@@ -78,6 +78,108 @@ int _scoreAudioMatch(AudioTrack mpvTrack, MediaAudioTrack plexTrack, {required b
   return score;
 }
 
+enum _DirectEmbeddedSubtitleCatalog { incomplete, complete }
+
+bool _isDirectEmbeddedPlexSubtitle(MediaSubtitleTrack track) => !track.isExternal;
+
+bool _isDirectEmbeddedMpvSubtitle(SubtitleTrack track) =>
+    track.id != SubtitleTrack.auto.id && track.id != SubtitleTrack.off.id && !track.isExternal && !track.isContainer;
+
+/// Classifies only ordinary direct-embedded rows. External/keyed source
+/// subtitles and native container tracks have independent arrival semantics
+/// and cannot prove that this catalog is complete.
+_DirectEmbeddedSubtitleCatalog _classifyDirectEmbeddedSubtitleCatalog(
+  List<MediaSubtitleTrack> plexTracks,
+  List<SubtitleTrack> mpvTracks,
+) {
+  var plexTrackCount = 0;
+  for (final track in plexTracks) {
+    if (_isDirectEmbeddedPlexSubtitle(track)) plexTrackCount++;
+  }
+
+  var mpvTrackCount = 0;
+  for (final track in mpvTracks) {
+    if (_isDirectEmbeddedMpvSubtitle(track)) mpvTrackCount++;
+  }
+
+  return plexTrackCount > 0 && plexTrackCount == mpvTrackCount
+      ? _DirectEmbeddedSubtitleCatalog.complete
+      : _DirectEmbeddedSubtitleCatalog.incomplete;
+}
+
+bool _hasSubtitleFact(String? value) => value != null && value.trim().isNotEmpty;
+
+bool _lowMetadataSubtitleFactsAreCompatible(SubtitleTrack mpvTrack, MediaSubtitleTrack plexTrack) {
+  final plexLanguage = plexTrack.languageCode;
+  if (_hasSubtitleFact(mpvTrack.language) &&
+      _hasSubtitleFact(plexLanguage) &&
+      !_languagesMatch(mpvTrack.language, plexLanguage)) {
+    return false;
+  }
+
+  if (_hasSubtitleFact(mpvTrack.codec) &&
+      _hasSubtitleFact(plexTrack.codec) &&
+      !_subtitleCodecsMatch(mpvTrack.codec, plexTrack.codec)) {
+    return false;
+  }
+
+  final plexHasTitle = _hasSubtitleFact(plexTrack.title) || _hasSubtitleFact(plexTrack.displayTitle);
+  if (_hasSubtitleFact(mpvTrack.title) &&
+      plexHasTitle &&
+      _titleScore(mpvTrack.title, plexTrack.title, plexTrack.displayTitle) == 0) {
+    return false;
+  }
+
+  return mpvTrack.isForced == plexTrack.forced;
+}
+
+int _scoreLowMetadataSubtitleFacts(SubtitleTrack mpvTrack, MediaSubtitleTrack plexTrack) {
+  var score = 0;
+  final plexLanguage = plexTrack.languageCode;
+  if (_hasSubtitleFact(mpvTrack.language) &&
+      _hasSubtitleFact(plexLanguage) &&
+      _languagesMatch(mpvTrack.language, plexLanguage)) {
+    score += 10;
+    if (_languageCodesExactMatch(mpvTrack.language, plexLanguage)) score++;
+  }
+  if (_hasSubtitleFact(mpvTrack.codec) &&
+      _hasSubtitleFact(plexTrack.codec) &&
+      _subtitleCodecsMatch(mpvTrack.codec, plexTrack.codec)) {
+    score += 5;
+  }
+  if (_hasSubtitleFact(mpvTrack.title) &&
+      (_hasSubtitleFact(plexTrack.title) || _hasSubtitleFact(plexTrack.displayTitle)) &&
+      _titleScore(mpvTrack.title, plexTrack.title, plexTrack.displayTitle) > 0) {
+    score += 3;
+  }
+  if (mpvTrack.isForced == plexTrack.forced) score += 2;
+  return score;
+}
+
+T? _findUniqueBestLowMetadataMatch<T extends Object>(
+  Iterable<T> candidates, {
+  required bool Function(T candidate) isCompatible,
+  required int Function(T candidate) score,
+}) {
+  T? bestMatch;
+  var bestScore = -1;
+  var bestIsUnique = false;
+
+  for (final candidate in candidates) {
+    if (!isCompatible(candidate)) continue;
+    final candidateScore = score(candidate);
+    if (candidateScore > bestScore) {
+      bestMatch = candidate;
+      bestScore = candidateScore;
+      bestIsUnique = true;
+    } else if (candidateScore == bestScore) {
+      bestIsUnique = false;
+    }
+  }
+
+  return bestIsUnique ? bestMatch : null;
+}
+
 /// Find the MPV subtitle track that matches a Plex subtitle track
 SubtitleTrack? findMpvTrackForPlexSubtitle(
   MediaSubtitleTrack plexTrack,
@@ -140,7 +242,22 @@ SubtitleTrack? findMpvTrackForPlexSubtitle(
 
   // Prefer metadata matches. Container sidecars may expose no language/title/
   // codec at all, so their stable subtitle order is the last-resort identity.
-  return bestScore >= 10 || bestMatchUsesContainerOrdinal ? bestMatch : null;
+  if (bestScore >= 10 || bestMatchUsesContainerOrdinal) return bestMatch;
+
+  final plexTracks = allPlexTracks;
+  if (plexTracks == null ||
+      !_isDirectEmbeddedPlexSubtitle(plexTrack) ||
+      _classifyDirectEmbeddedSubtitleCatalog(plexTracks, mpvTracks) != _DirectEmbeddedSubtitleCatalog.complete) {
+    return null;
+  }
+
+  // A complete ordinary direct catalog may safely resolve low-metadata rows
+  // only from their facts. Native order is deliberately not an identity.
+  return _findUniqueBestLowMetadataMatch(
+    mpvTracks.where(_isDirectEmbeddedMpvSubtitle),
+    isCompatible: (candidate) => _lowMetadataSubtitleFactsAreCompatible(candidate, plexTrack),
+    score: (candidate) => _scoreLowMetadataSubtitleFacts(candidate, plexTrack),
+  );
 }
 
 /// Find the Plex subtitle track that matches an MPV subtitle track
@@ -204,7 +321,20 @@ MediaSubtitleTrack? findPlexTrackForMpvSubtitle(
 
   // Prefer metadata matches, with container order as the symmetric fallback
   // needed to persist a metadata-free native track back to its Plex stream.
-  return bestScore >= 10 || bestMatchUsesContainerOrdinal ? bestMatch : null;
+  if (bestScore >= 10 || bestMatchUsesContainerOrdinal) return bestMatch;
+
+  final mpvTracks = allMpvTracks;
+  if (mpvTracks == null ||
+      !_isDirectEmbeddedMpvSubtitle(mpvTrack) ||
+      _classifyDirectEmbeddedSubtitleCatalog(plexTracks, mpvTracks) != _DirectEmbeddedSubtitleCatalog.complete) {
+    return null;
+  }
+
+  return _findUniqueBestLowMetadataMatch(
+    plexTracks.where(_isDirectEmbeddedPlexSubtitle),
+    isCompatible: (candidate) => _lowMetadataSubtitleFactsAreCompatible(mpvTrack, candidate),
+    score: (candidate) => _scoreLowMetadataSubtitleFacts(mpvTrack, candidate),
+  );
 }
 
 /// Find the MPV audio track that matches a Plex audio track
@@ -596,6 +726,22 @@ class TrackSelectionService {
     return TrackSelectionResult(selected, TrackSelectionPriority.profile);
   }
 
+  MediaSubtitleTrack? _sourceSubtitleTrack(String nativeId) {
+    if (!nativeId.startsWith('source:')) return null;
+    final sourceId = int.tryParse(nativeId.substring('source:'.length));
+    return sourceId == null ? null : plexMediaInfo?.subtitleTracks.where((track) => track.id == sourceId).firstOrNull;
+  }
+
+  bool _hasCompleteDirectPlexCatalogFor(MediaSubtitleTrack? sourceTrack, List<SubtitleTrack> availableTracks) {
+    final info = plexMediaInfo;
+    return metadata.backend == MediaBackend.plex &&
+        info != null &&
+        sourceTrack != null &&
+        _isDirectEmbeddedPlexSubtitle(sourceTrack) &&
+        _classifyDirectEmbeddedSubtitleCatalog(info.subtitleTracks, availableTracks) ==
+            _DirectEmbeddedSubtitleCatalog.complete;
+  }
+
   SubtitleTrack? findBestSubtitleMatch(List<SubtitleTrack> availableTracks, SubtitleTrack preferred) {
     // Handle special "no subtitles" case
     if (preferred.id == 'no') {
@@ -603,10 +749,7 @@ class TrackSelectionService {
     }
 
     if (preferred.id.startsWith('source:')) {
-      final sourceId = int.tryParse(preferred.id.substring('source:'.length));
-      final sourceTrack = sourceId == null
-          ? null
-          : plexMediaInfo?.subtitleTracks.where((track) => track.id == sourceId).firstOrNull;
+      final sourceTrack = _sourceSubtitleTrack(preferred.id);
       if (sourceTrack == null) return null;
       return findMpvTrackForPlexSubtitle(sourceTrack, availableTracks, allPlexTracks: plexMediaInfo?.subtitleTracks);
     }
@@ -763,9 +906,9 @@ class TrackSelectionService {
   /// Priority 4: Default track
   /// Priority 5: Off
   ///
-  /// Returns null while the source catalog advertises subtitles but the
-  /// native player has not exposed any of them yet. That transient state is
-  /// not equivalent to an explicit server decision to turn subtitles off.
+  /// Returns null only while the source catalog can still deliver the requested
+  /// subtitle. A complete catalog with no unambiguous match proceeds through
+  /// the safe default/off priorities instead of waiting indefinitely.
   TrackSelectionResult<SubtitleTrack>? selectSubtitleTrack(
     List<SubtitleTrack> availableTracks,
     SubtitleTrack? preferredSubtitleTrack,
@@ -781,7 +924,10 @@ class TrackSelectionService {
           return TrackSelectionResult(subtitleToSelect, TrackSelectionPriority.navigation);
         }
       }
-      if (preferredSubtitleTrack.id.startsWith('source:')) return null;
+      if (preferredSubtitleTrack.id.startsWith('source:') &&
+          !_hasCompleteDirectPlexCatalogFor(_sourceSubtitleTrack(preferredSubtitleTrack.id), availableTracks)) {
+        return null;
+      }
     }
 
     // Priority 2: Trust the server's selected track. Plex computes this from
@@ -800,7 +946,10 @@ class TrackSelectionService {
         if (matchedMpvTrack != null) {
           return TrackSelectionResult(matchedMpvTrack, TrackSelectionPriority.serverSelected);
         }
-        if (metadata.backend == MediaBackend.plex) return null;
+        if (metadata.backend == MediaBackend.plex &&
+            !_hasCompleteDirectPlexCatalogFor(serverSelectedTrack, availableTracks)) {
+          return null;
+        }
       } else if (metadata.backend == MediaBackend.jellyfin) {
         final defaultStreamIndex = info.defaultSubtitleStreamIndex;
         if (defaultStreamIndex == -1) {

lib/watch_together/widgets/watch_together_overlay.dart

@@ -73,9 +73,16 @@ class _SessionIndicator extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final semanticValue = [
+      '${t.watchTogether.participants}: $participantCount',
+      if (isHost) t.watchTogether.youAreHost,
+      if (isSyncing) t.watchTogether.syncing,
+    ].join(', ');
+
     return FocusableWrapper(
       onSelect: onTap,
       semanticLabel: t.watchTogether.openSessionControls,
+      semanticValue: semanticValue,
       descendantsAreFocusable: false,
       borderRadius: 20,
       useBackgroundFocus: true,
@@ -173,6 +180,7 @@ class _SessionMenuSheet extends StatelessWidget {
                 FocusableWrapper(
                   onSelect: () => _copySessionCode(context, provider.sessionId!),
                   semanticLabel: t.watchTogether.copySessionCode,
+                  semanticValue: provider.sessionId!,
                   descendantsAreFocusable: false,
                   borderRadius: 8,
                   useBackgroundFocus: true,

lib/widgets/collapsible_text.dart

@@ -136,6 +136,7 @@ class _CollapsibleTextState extends State<CollapsibleText> {
               : _expanded
               ? t.accessibility.collapseText
               : t.accessibility.expandText,
+          excludeChildSemantics: false,
           descendantsAreFocusable: false,
           disableScale: true,
           useBackgroundFocus: true,
@@ -147,11 +148,7 @@ class _CollapsibleTextState extends State<CollapsibleText> {
         }
 
         return ClickableCursor(
-          child: GestureDetector(
-            onTap: _toggleExpanded,
-            excludeFromSemantics: widget.suppressExpandSemantics,
-            child: result,
-          ),
+          child: GestureDetector(onTap: _toggleExpanded, excludeFromSemantics: true, child: result),
         );
       },
     );

lib/widgets/device_code_dialog.dart

@@ -51,6 +51,7 @@ class DeviceCodeDialog extends StatelessWidget {
             child: FocusableWrapper(
               onSelect: () => _copy(context),
               semanticLabel: t.services.deviceCode.copyCode,
+              semanticValue: code.userCode,
               descendantsAreFocusable: false,
               useBackgroundFocus: true,
               borderRadius: 8,

lib/widgets/focusable_popup_menu_button.dart

@@ -23,6 +23,9 @@ class FocusablePopupMenuButton<T> extends StatefulWidget {
   final VoidCallback? onNavigateLeft;
   final VoidCallback? onNavigateRight;
   final String? semanticLabel;
+
+  /// Optional current value announced after the effective semantic label.
+  final String? semanticValue;
   final double borderRadius;
   final bool useBackgroundFocus;
   final bool enableLongPress;
@@ -47,6 +50,7 @@ class FocusablePopupMenuButton<T> extends StatefulWidget {
     this.onNavigateLeft,
     this.onNavigateRight,
     this.semanticLabel,
+    this.semanticValue,
     this.borderRadius = 100,
     this.useBackgroundFocus = true,
     this.enableLongPress = true,
@@ -73,6 +77,7 @@ class _FocusablePopupMenuButtonState<T> extends State<FocusablePopupMenuButton<T
       useBackgroundFocus: widget.useBackgroundFocus,
       descendantsAreFocusable: false,
       semanticLabel: widget.semanticLabel ?? widget.tooltip,
+      semanticValue: widget.semanticValue,
       enableLongPress: widget.enableLongPress,
       onNavigateUp: widget.onNavigateUp,
       onNavigateDown: widget.onNavigateDown,

lib/widgets/hotkey_recorder.dart

@@ -81,6 +81,15 @@ class _HotKeyRecorderState extends State<HotKeyRecorder> {
   }
 }
 
+List<String> _hotKeyDisplayLabels(HotKey hotKey) => [
+  for (final modifier in hotKey.modifiers ?? []) physicalKeyLabel(modifier.physicalKeys.first),
+  physicalKeyLabel(hotKey.key),
+];
+
+/// Formats a shortcut from the same ordered key labels rendered by
+/// [HotKeyVirtualView].
+String formatHotKeyDisplay(HotKey hotKey) => _hotKeyDisplayLabels(hotKey).join(' + ');
+
 /// Renders a [HotKey] as a row of styled key label chips.
 class HotKeyVirtualView extends StatelessWidget {
   const HotKeyVirtualView({super.key, required this.hotKey});
@@ -89,14 +98,8 @@ class HotKeyVirtualView extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return Wrap(
-      spacing: 8,
-      children: [
-        for (final modifier in hotKey.modifiers ?? [])
-          _VirtualKeyView(keyLabel: physicalKeyLabel(modifier.physicalKeys.first)),
-        _VirtualKeyView(keyLabel: physicalKeyLabel(hotKey.key)),
-      ],
-    );
+    final keyLabels = _hotKeyDisplayLabels(hotKey);
+    return Wrap(spacing: 8, children: [for (final keyLabel in keyLabels) _VirtualKeyView(keyLabel: keyLabel)]);
   }
 }
 

lib/widgets/music/mini_player.dart

@@ -299,6 +299,7 @@ class _MiniPlayerCardState extends State<_MiniPlayerCard> with ContextMenuTapMix
                         onLongPress: showContextMenu,
                         onNavigateRight: () => _transportKey.currentState?.requestFocusOnFirst(),
                         semanticLabel: widget.track.title,
+                        semanticValue: artist,
                         descendantsAreFocusable: false,
                         disableScale: true,
                         useBackgroundFocus: true,

lib/widgets/oauth_proxy_dialog.dart

@@ -61,6 +61,7 @@ class OAuthProxyDialog extends StatelessWidget {
           FocusableWrapper(
             onSelect: () => _copyUrl(context),
             semanticLabel: t.services.oauthProxy.copyUrl,
+            semanticValue: start.url,
             descendantsAreFocusable: false,
             borderRadius: 8,
             useBackgroundFocus: true,

lib/widgets/video_controls/models/track_controls_state.dart

@@ -5,6 +5,7 @@ import '../../../media/media_version.dart';
 import '../../../media/media_source_info.dart';
 import '../../../models/transcode_quality_preset.dart';
 import '../../../mpv/mpv.dart';
+import '../../../services/playback_initialization_types.dart';
 import '../../../services/playback_subtitle_resolver.dart';
 import '../../../services/shader_service.dart';
 import '../helpers/track_filter_helper.dart';
@@ -23,7 +24,7 @@ class TrackControlsState {
   final List<MediaSubtitleTrack> sourceSubtitleTracks;
   final PlaybackSourceSubtitleChoice? selectedSubtitleChoice;
   final int? selectedSecondarySubtitleStreamId;
-  final Set<int> sourceSubtitleSidecarIds;
+  final List<PlaybackSubtitleSidecar> sourceSubtitleSidecars;
   final int? sourcePartId;
 
   /// Total media duration in milliseconds. Used by the version/quality sheet
@@ -88,7 +89,7 @@ class TrackControlsState {
     this.sourceSubtitleTracks = const [],
     this.selectedSubtitleChoice,
     this.selectedSecondarySubtitleStreamId,
-    this.sourceSubtitleSidecarIds = const <int>{},
+    this.sourceSubtitleSidecars = const <PlaybackSubtitleSidecar>[],
     this.sourcePartId,
     this.sourceDurationMs,
     this.boxFitMode = 0,
@@ -141,7 +142,13 @@ class TrackControlsState {
   /// Direct play keeps embedded/native switching instant while still exposing
   /// unloaded server sidecars that require one source reopen when selected.
   List<MediaSubtitleTrack> get directPlaySourceSidecars => !isTranscoding && onSwitchSubtitle != null
-      ? sourceSubtitleTracks.where((track) => sourceSubtitleSidecarIds.contains(track.id)).toList(growable: false)
+      ? sourceSubtitleTracks
+            .where(
+              (track) => sourceSubtitleSidecars.any(
+                (sidecar) => sidecar.sourceStreamId != null && sidecar.sourceStreamId == track.id,
+              ),
+            )
+            .toList(growable: false)
       : const <MediaSubtitleTrack>[];
 
   /// External subtitle search needs both a searchable media item and a server

lib/widgets/video_controls/parts/track_controls.dart

@@ -134,7 +134,9 @@ extension _PlexVideoControlsTrackMethods on _PlexVideoControlsState {
           : const <MediaSubtitleTrack>[],
       selectedSubtitleChoice: canSwitchSourceSubtitles ? versionQuality.selectedSubtitleChoice : null,
       selectedSecondarySubtitleStreamId: canSwitchSourceSubtitles ? widget.selectedSecondarySubtitleStreamId : null,
-      sourceSubtitleSidecarIds: canSwitchSourceSubtitles ? widget.sourceSubtitleSidecarIds : const <int>{},
+      sourceSubtitleSidecars: canSwitchSourceSubtitles
+          ? widget.sourceSubtitleSidecars
+          : const <PlaybackSubtitleSidecar>[],
       sourcePartId: canSwitchSourceSubtitles ? widget.sourcePartId : null,
       sourceDurationMs: widget.metadata.durationMs,
       boxFitMode: widget.boxFitMode,

lib/widgets/video_controls/sheets/track_sheet.dart

@@ -418,12 +418,26 @@ class _SubtitleColumnState extends State<_SubtitleColumn> {
     final hasSecondary = widget.supportsSecondary && secondarySub != null;
     final selectedSourceId = widget.trackControlsState.selectedSubtitleChoice?.sourceStreamId;
     final selectedSecondarySourceId = widget.trackControlsState.selectedSecondarySubtitleStreamId;
+    final attachedSourceSidecarIds = <int>{};
+    for (final sidecar in widget.trackControlsState.sourceSubtitleSidecars) {
+      final sourceStreamId = sidecar.sourceStreamId;
+      final uri = sidecar.track.uri;
+      if (sourceStreamId == null || uri == null) continue;
+      if (widget.tracks.any((track) => track.isExternal && track.uri == uri)) {
+        attachedSourceSidecarIds.add(sourceStreamId);
+      }
+    }
     final unloadedSourceSidecars = widget.sourceSidecars
-        .where((track) => track.id != selectedSourceId && track.id != selectedSecondarySourceId)
+        .where(
+          (track) =>
+              !attachedSourceSidecarIds.contains(track.id) &&
+              track.id != selectedSourceId &&
+              track.id != selectedSecondarySourceId,
+        )
         .toList(growable: false);
 
-    // +1 for "Off" row. The selected direct-play sidecar is already present
-    // in [tracks], so only the other server sidecars are appended.
+    // +1 for "Off". Source sidecars represented by native external tracks,
+    // plus active source IDs awaiting native discovery, are not appended.
     final itemCount = widget.tracks.length + unloadedSourceSidecars.length + 1;
 
     final selectedIndex = isOffSelected ? null : widget.tracks.indexWhere((t) => t.id == selectedSub.id) + 1;

lib/widgets/video_controls/video_controls.dart

@@ -30,6 +30,7 @@ import 'package:flutter/services.dart'
 import '../../services/fullscreen_state_manager.dart';
 import '../../services/macos_window_service.dart';
 import '../../services/pip_service.dart';
+import '../../services/playback_initialization_types.dart';
 import '../../services/playback_subtitle_resolver.dart';
 import 'package:window_manager/window_manager.dart';
 
@@ -422,7 +423,7 @@ class PlexVideoControls extends StatefulWidget {
   final List<MediaSubtitleTrack> sourceSubtitleTracks;
   final PlaybackSourceSubtitleChoice? selectedSubtitleChoice;
   final int? selectedSecondarySubtitleStreamId;
-  final Set<int> sourceSubtitleSidecarIds;
+  final List<PlaybackSubtitleSidecar> sourceSubtitleSidecars;
   final int? sourcePartId;
   final PlaybackSourceChangeCallback? onPlaybackSourceChanged;
   final int boxFitMode;
@@ -540,7 +541,7 @@ class PlexVideoControls extends StatefulWidget {
     this.sourceSubtitleTracks = const [],
     this.selectedSubtitleChoice,
     this.selectedSecondarySubtitleStreamId,
-    this.sourceSubtitleSidecarIds = const <int>{},
+    this.sourceSubtitleSidecars = const <PlaybackSubtitleSidecar>[],
     this.sourcePartId,
     this.onPlaybackSourceChanged,
     this.boxFitMode = 0,

lib/widgets/video_controls/widgets/timeline_slider.dart

@@ -421,7 +421,6 @@ class _TimelineSliderState extends State<TimelineSlider> {
         autoScroll: false,
         disableScale: true,
         focusColor: Colors.transparent,
-        semanticLabel: t.videoControls.timelineSlider,
         descendantsAreFocusable: false,
         child: slider,
       );

test/database/app_database_test.dart

@@ -22,6 +22,19 @@ import 'package:plugin_platform_interface/plugin_platform_interface.dart';
 
 import '../test_helpers/prefs.dart';
 
+final class _EnsureOpenTrackingInterceptor extends QueryInterceptor {
+  var calls = 0;
+  var completed = false;
+
+  @override
+  Future<bool> ensureOpen(QueryExecutor executor, QueryExecutorUser user) async {
+    calls++;
+    final result = await executor.ensureOpen(user);
+    completed = true;
+    return result;
+  }
+}
+
 void main() {
   final suite = _AppDatabaseTestSuite();
   suite.registerTests();
@@ -731,7 +744,18 @@ class _AppDatabaseTestSuite {
           await seeded.close();
           seeded = null;
 
-          reopened = AppDatabase.forTesting(NativeDatabase(file));
+          resetSharedPreferencesForTest();
+          final prefs = await BaseSharedPreferencesService.sharedCache();
+          final openTracker = _EnsureOpenTrackingInterceptor();
+          final bootstrap = await AppDatabase.open(
+            isTvos: false,
+            databaseFile: file,
+            preferences: prefs,
+            executorFactory: (databaseFile) => NativeDatabase(databaseFile).interceptWith(openTracker),
+          );
+          reopened = bootstrap.database;
+          expect(openTracker.calls, greaterThanOrEqualTo(1));
+          expect(openTracker.completed, isTrue);
           final owners = await reopened.select(reopened.downloadOwners).get();
           DownloadOwnerItem owner(String profileId, String globalKey) =>
               owners.singleWhere((row) => row.profileId == profileId && row.globalKey == globalKey);

test/database/download_operations_test.dart

@@ -4,6 +4,7 @@ import 'package:drift/drift.dart' hide isNull, isNotNull;
 import 'package:plezy/media/ids.dart';
 import 'package:drift/native.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:path/path.dart' as path;
 import 'package:plezy/database/app_database.dart';
 import 'package:plezy/database/download_operations.dart';
 import 'package:plezy/models/download_models.dart';
@@ -130,45 +131,50 @@ void main() {
 
   group('insertQueuedDownload', () {
     test('atomically persists media identity, scope, policy, and queue state', () async {
+      await db.close();
       final tempDir = await Directory.systemTemp.createTemp('plezy_atomic_queue_');
-      final databaseFile = File('${tempDir.path}/downloads.sqlite');
-      addTearDown(() async {
-        if (await tempDir.exists()) await tempDir.delete(recursive: true);
-      });
-      await db.close();
-      db = AppDatabase.forTesting(NativeDatabase(databaseFile));
-      final outcome = await db.insertQueuedDownload(
-        serverId: ServerId('srv'),
-        clientScopeId: 'srv/user-a',
-        ratingKey: 'episode-1',
-        globalKey: 'srv:episode-1',
-        type: 'episode',
-        parentRatingKey: 'season-1',
-        grandparentRatingKey: 'show-1',
-        mediaIndex: 3,
-        mediaSourceId: 'source-3',
-        priority: 7,
-        downloadSubtitles: false,
-        downloadArtwork: true,
-      );
-      expect(outcome, QueueDownloadOutcome.admitted);
-      await db.close();
-      db = AppDatabase.forTesting(NativeDatabase(databaseFile));
+      final databaseFile = File(path.join(tempDir.path, 'downloads.sqlite'));
+      try {
+        db = AppDatabase.forTesting(NativeDatabase(databaseFile));
+        final outcome = await db.insertQueuedDownload(
+          serverId: ServerId('srv'),
+          clientScopeId: 'srv/user-a',
+          ratingKey: 'episode-1',
+          globalKey: 'srv:episode-1',
+          type: 'episode',
+          parentRatingKey: 'season-1',
+          grandparentRatingKey: 'show-1',
+          mediaIndex: 3,
+          mediaSourceId: 'source-3',
+          priority: 7,
+          downloadSubtitles: false,
+          downloadArtwork: true,
+        );
+        expect(outcome, QueueDownloadOutcome.admitted);
+        await db.close();
+        db = AppDatabase.forTesting(NativeDatabase(databaseFile));
 
-      final media = (await db.select(db.downloadedMedia).get()).single;
-      final queued = (await db.select(db.downloadQueue).get()).single;
-      expect(media.serverId, 'srv');
-      expect(media.clientScopeId, 'srv/user-a');
-      expect(media.ratingKey, 'episode-1');
-      expect(media.parentRatingKey, 'season-1');
-      expect(media.grandparentRatingKey, 'show-1');
-      expect(media.status, DownloadStatus.queued.index);
-      expect(media.mediaIndex, 3);
-      expect(media.mediaSourceId, 'source-3');
-      expect(queued.mediaGlobalKey, media.globalKey);
-      expect(queued.priority, 7);
-      expect(queued.downloadSubtitles, isFalse);
-      expect(queued.downloadArtwork, isTrue);
+        final media = (await db.select(db.downloadedMedia).get()).single;
+        final queued = (await db.select(db.downloadQueue).get()).single;
+        expect(media.serverId, 'srv');
+        expect(media.clientScopeId, 'srv/user-a');
+        expect(media.ratingKey, 'episode-1');
+        expect(media.parentRatingKey, 'season-1');
+        expect(media.grandparentRatingKey, 'show-1');
+        expect(media.status, DownloadStatus.queued.index);
+        expect(media.mediaIndex, 3);
+        expect(media.mediaSourceId, 'source-3');
+        expect(queued.mediaGlobalKey, media.globalKey);
+        expect(queued.priority, 7);
+        expect(queued.downloadSubtitles, isFalse);
+        expect(queued.downloadArtwork, isTrue);
+      } finally {
+        await db.close();
+        db = AppDatabase.forTesting(NativeDatabase.memory());
+        if (await tempDir.exists()) {
+          await tempDir.delete(recursive: true);
+        }
+      }
     });
 
     test('requeues retryable rows without replacing identity or physical fields', () async {
@@ -369,57 +375,68 @@ void main() {
     });
 
     test('rolls back both new and replacement media rows when queue insertion fails', () async {
-      final tempDir = await Directory.systemTemp.createTemp('plezy_atomic_rollback_');
-      final databaseFile = File('${tempDir.path}/downloads.sqlite');
-      addTearDown(() async {
-        if (await tempDir.exists()) await tempDir.delete(recursive: true);
-      });
       await db.close();
-      db = AppDatabase.forTesting(NativeDatabase(databaseFile));
-      await db.insertDownload(
-        serverId: ServerId('srv'),
-        ratingKey: 'existing',
-        globalKey: 'srv:existing',
-        type: 'movie',
-        status: DownloadStatus.failed.index,
-      );
-      await db.updateDownloadProgress('srv:existing', 41, 410, 1000);
-      await db.customStatement('''
-        CREATE TRIGGER reject_download_queue_insert
-        BEFORE INSERT ON download_queue
-        BEGIN
-          SELECT RAISE(ABORT, 'queue insert rejected');
-        END
-      ''');
-
-      await expectLater(
-        db.insertQueuedDownload(serverId: ServerId('srv'), ratingKey: 'new', globalKey: 'srv:new', type: 'movie'),
-        throwsA(anything),
-      );
-      expect(await db.getDownloadedMedia('srv:new'), isNull);
-      expect(await (db.select(db.downloadQueue)..where((row) => row.mediaGlobalKey.equals('srv:new'))).get(), isEmpty);
-
-      await expectLater(
-        db.insertQueuedDownload(
+      final tempDir = await Directory.systemTemp.createTemp('plezy_atomic_rollback_');
+      final databaseFile = File(path.join(tempDir.path, 'downloads.sqlite'));
+      try {
+        db = AppDatabase.forTesting(NativeDatabase(databaseFile));
+        await db.insertDownload(
           serverId: ServerId('srv'),
           ratingKey: 'existing',
           globalKey: 'srv:existing',
           type: 'movie',
-        ),
-        throwsA(anything),
-      );
-      await db.close();
-      db = AppDatabase.forTesting(NativeDatabase(databaseFile));
-      expect(await db.getDownloadedMedia('srv:new'), isNull);
-      expect(await (db.select(db.downloadQueue)..where((row) => row.mediaGlobalKey.equals('srv:new'))).get(), isEmpty);
-      final preserved = await db.getDownloadedMedia('srv:existing');
-      expect(preserved?.status, DownloadStatus.failed.index);
-      expect(preserved?.progress, 41);
-      expect(preserved?.downloadedBytes, 410);
-      expect(
-        await (db.select(db.downloadQueue)..where((row) => row.mediaGlobalKey.equals('srv:existing'))).get(),
-        isEmpty,
-      );
+          status: DownloadStatus.failed.index,
+        );
+        await db.updateDownloadProgress('srv:existing', 41, 410, 1000);
+        await db.customStatement('''
+          CREATE TRIGGER reject_download_queue_insert
+          BEFORE INSERT ON download_queue
+          BEGIN
+            SELECT RAISE(ABORT, 'queue insert rejected');
+          END
+        ''');
+
+        await expectLater(
+          db.insertQueuedDownload(serverId: ServerId('srv'), ratingKey: 'new', globalKey: 'srv:new', type: 'movie'),
+          throwsA(anything),
+        );
+        expect(await db.getDownloadedMedia('srv:new'), isNull);
+        expect(
+          await (db.select(db.downloadQueue)..where((row) => row.mediaGlobalKey.equals('srv:new'))).get(),
+          isEmpty,
+        );
+
+        await expectLater(
+          db.insertQueuedDownload(
+            serverId: ServerId('srv'),
+            ratingKey: 'existing',
+            globalKey: 'srv:existing',
+            type: 'movie',
+          ),
+          throwsA(anything),
+        );
+        await db.close();
+        db = AppDatabase.forTesting(NativeDatabase(databaseFile));
+        expect(await db.getDownloadedMedia('srv:new'), isNull);
+        expect(
+          await (db.select(db.downloadQueue)..where((row) => row.mediaGlobalKey.equals('srv:new'))).get(),
+          isEmpty,
+        );
+        final preserved = await db.getDownloadedMedia('srv:existing');
+        expect(preserved?.status, DownloadStatus.failed.index);
+        expect(preserved?.progress, 41);
+        expect(preserved?.downloadedBytes, 410);
+        expect(
+          await (db.select(db.downloadQueue)..where((row) => row.mediaGlobalKey.equals('srv:existing'))).get(),
+          isEmpty,
+        );
+      } finally {
+        await db.close();
+        db = AppDatabase.forTesting(NativeDatabase.memory());
+        if (await tempDir.exists()) {
+          await tempDir.delete(recursive: true);
+        }
+      }
     });
   });
 

test/focus/focusable_wrapper_test.dart

@@ -1,4 +1,7 @@
+import 'dart:ui' show SemanticsAction, Tristate;
+
 import 'package:flutter/material.dart';
+import 'package:flutter/semantics.dart' show SemanticsNode;
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:plezy/focus/card_focus_scope.dart';
@@ -121,4 +124,92 @@ void main() {
     semanticsOwner.removeListener(countSemanticsUpdate);
     semantics.dispose();
   });
+
+  testWidgets('semantic label replaces child semantics by default', (tester) async {
+    final semantics = tester.ensureSemantics();
+    var activations = 0;
+    var childActivations = 0;
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: FocusableWrapper(
+            semanticLabel: 'Open details',
+            semanticValue: 'Ready',
+            onSelect: () => activations++,
+            child: Semantics(
+              label: 'Decorative artwork',
+              value: 'Decorative state',
+              button: true,
+              onTap: () => childActivations++,
+              child: const Text('Poster'),
+            ),
+          ),
+        ),
+      ),
+    );
+
+    final finder = find.bySemanticsLabel('Open details');
+    expect(finder, findsOneWidget);
+    expect(find.bySemanticsLabel('Decorative artwork'), findsNothing);
+    expect(find.bySemanticsLabel('Poster'), findsNothing);
+
+    final node = tester.getSemantics(finder);
+    final data = node.getSemanticsData();
+    expect(data.value, 'Ready');
+    expect(data.flagsCollection.isButton, isTrue);
+    expect(data.flagsCollection.isEnabled, Tristate.isTrue);
+    expect(data.hasAction(SemanticsAction.tap), isTrue);
+    expect(_semanticTapNodeCount(tester), 1);
+
+    node.owner!.performAction(node.id, SemanticsAction.tap);
+    expect(activations, 1);
+    expect(childActivations, 0);
+    semantics.dispose();
+  });
+
+  testWidgets('merge mode supplements non-interactive child semantics', (tester) async {
+    final semantics = tester.ensureSemantics();
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: FocusableWrapper(
+            semanticLabel: 'Expand',
+            excludeChildSemantics: false,
+            onSelect: () {},
+            child: Semantics(value: 'Available offline', child: const Text('Visible synopsis')),
+          ),
+        ),
+      ),
+    );
+
+    final finder = find.bySemanticsLabel(RegExp('Expand'));
+    expect(finder, findsOneWidget);
+    expect(find.bySemanticsLabel(RegExp('Visible synopsis')), findsOneWidget);
+
+    final data = tester.getSemantics(finder).getSemanticsData();
+    expect(data.label, contains('Expand'));
+    expect(data.label, contains('Visible synopsis'));
+    expect(data.value, 'Available offline');
+    expect(data.flagsCollection.isButton, isTrue);
+    expect(data.flagsCollection.isEnabled, Tristate.isTrue);
+    expect(data.hasAction(SemanticsAction.tap), isTrue);
+    expect(_semanticTapNodeCount(tester), 1);
+    semantics.dispose();
+  });
+}
+
+int _semanticTapNodeCount(WidgetTester tester) {
+  var count = 0;
+  void visit(SemanticsNode node) {
+    if (node.getSemanticsData().hasAction(SemanticsAction.tap)) count++;
+    node.visitChildren((child) {
+      visit(child);
+      return true;
+    });
+  }
+
+  visit(tester.binding.renderViews.single.owner!.semanticsOwner!.rootSemanticsNode!);
+  return count;
 }

test/media/media_server_client_cache_test.dart

@@ -185,4 +185,96 @@ void main() {
     expect(cacheParserCalls, 0);
     expect(responseParserCalls, 0);
   });
+
+  group('fetchWithCacheFallback error selection', () {
+    const cachedBody = {'value': 'cached'};
+
+    test('omitted selector preserves fallback on an HTTP 500', () async {
+      const key = '/metadata/default-fallback';
+      await cache.put(client.serverId, key, cachedBody);
+      var cacheParserCalls = 0;
+      var responseParserCalls = 0;
+
+      final value = await client.fetchWithCacheFallback<String>(
+        cacheKey: key,
+        networkCall: () async =>
+            MediaServerResponse(statusCode: 500, data: const {'value': 'server error'}, headers: const {}),
+        parseCache: (cached) {
+          cacheParserCalls++;
+          return (cached as Map<String, dynamic>)['value'] as String;
+        },
+        parseResponse: (_) {
+          responseParserCalls++;
+          return 'network';
+        },
+      );
+
+      expect(value, 'cached');
+      expect(cacheParserCalls, 1);
+      expect(responseParserCalls, 0);
+    });
+
+    test('rejecting selector rethrows an HTTP status without reading cached data', () async {
+      const key = '/metadata/rejected-fallback';
+      await cache.put(client.serverId, key, cachedBody);
+      var cacheParserCalls = 0;
+      var responseParserCalls = 0;
+
+      await expectLater(
+        client.fetchWithCacheFallback<String>(
+          cacheKey: key,
+          networkCall: () async =>
+              MediaServerResponse(statusCode: 500, data: const {'value': 'server error'}, headers: const {}),
+          shouldFallback: (error) => error is MediaServerHttpException && error.isTransient,
+          parseCache: (_) {
+            cacheParserCalls++;
+            return 'cached';
+          },
+          parseResponse: (_) {
+            responseParserCalls++;
+            return 'network';
+          },
+        ),
+        throwsA(isA<MediaServerHttpException>().having((error) => error.statusCode, 'statusCode', 500)),
+      );
+
+      expect(cacheParserCalls, 0);
+      expect(responseParserCalls, 0);
+      expect(await cache.get(client.serverId, key), cachedBody);
+    });
+
+    test('accepting selector serves cache after a transient transport failure', () async {
+      const key = '/metadata/transient-fallback';
+      await cache.put(client.serverId, key, cachedBody);
+      final transient = MediaServerHttpException(
+        type: MediaServerHttpErrorType.connectionTimeout,
+        message: 'timed out',
+      );
+      Object? selectedError;
+      var cacheParserCalls = 0;
+      var responseParserCalls = 0;
+
+      final value = await client.fetchWithCacheFallback<String>(
+        cacheKey: key,
+        networkCall: () => Future<MediaServerResponse>.error(transient),
+        shouldFallback: (error) {
+          selectedError = error;
+          return error is MediaServerHttpException && error.isTransient;
+        },
+        parseCache: (cached) {
+          cacheParserCalls++;
+          return (cached as Map<String, dynamic>)['value'] as String;
+        },
+        parseResponse: (_) {
+          responseParserCalls++;
+          return 'network';
+        },
+      );
+
+      expect(value, 'cached');
+      expect(identical(selectedError, transient), isTrue);
+      expect(cacheParserCalls, 1);
+      expect(responseParserCalls, 0);
+    });
+  });
 }

test/navigation/profile_session_screen_test.dart

@@ -23,6 +23,7 @@ import 'package:plezy/services/storage_service.dart';
 import 'package:plezy/services/system_shelf_service.dart';
 import 'package:provider/provider.dart';
 
+import '../test_helpers/io_fakes.dart';
 import '../test_helpers/prefs.dart';
 
 void main() {
@@ -60,6 +61,15 @@ void main() {
     final trackerProviders = <TrackersProvider>[];
     final companionProviders = <CompanionRemoteProvider>[];
     final disposedActiveIds = <String>[];
+    final trackerHttpClients = <FakeHttpClient>[];
+    // The probe instantiates TrackersProvider (four eager auth owners); the
+    // separate Trakt provider remains lazy in this reduced shell.
+    const trackerAuthClientsPerProfile = 4;
+    FakeHttpClient trackerHttpClientFactory() {
+      final client = FakeHttpClient(200, const <int>[]);
+      trackerHttpClients.add(client);
+      return client;
+    }
 
     addTearDown(() async {
       await tester.pumpWidget(const SizedBox.shrink());
@@ -97,6 +107,7 @@ void main() {
         child: MaterialApp(
           home: ProfileSessionScreen.forTesting(
             initialPromptHandled: true,
+            httpClientFactory: trackerHttpClientFactory,
             profileShellBuilder: (context) => _ProfileProbeShell(
               discoverProviders: discoverProviders,
               hiddenProviders: hiddenProviders,
@@ -109,6 +120,9 @@ void main() {
       ),
     );
     await tester.pumpAndSettle();
+    expect(trackerHttpClients, hasLength(trackerAuthClientsPerProfile));
+    final ownerHttpClients = List<FakeHttpClient>.of(trackerHttpClients);
+    _expectCloseCount(ownerHttpClients, 0);
 
     expect(find.text('active:local-owner'), findsOneWidget);
     expect(SystemShelfService().debugActiveOwner, owner.id);
@@ -131,6 +145,10 @@ void main() {
 
     expect(await activeProfile.activate(kids), isTrue);
     await tester.pumpAndSettle();
+    expect(trackerHttpClients, hasLength(trackerAuthClientsPerProfile * 2));
+    final kidsHttpClients = trackerHttpClients.sublist(ownerHttpClients.length);
+    _expectCloseCount(ownerHttpClients, 1);
+    _expectCloseCount(kidsHttpClients, 0);
 
     expect(find.text('old profile route'), findsNothing);
     expect(find.text('active:local-kids'), findsOneWidget);
@@ -154,19 +172,27 @@ void main() {
 
     await activeProfile.clearActiveProfile();
     await tester.pumpAndSettle();
+    expect(trackerHttpClients, hasLength(trackerAuthClientsPerProfile * 3));
+    final signedOutHttpClients = trackerHttpClients.sublist(ownerHttpClients.length + kidsHttpClients.length);
+    _expectCloseCount(ownerHttpClients, 1);
+    _expectCloseCount(kidsHttpClients, 1);
+    _expectCloseCount(signedOutHttpClients, 0);
     expect(SystemShelfService().debugActiveOwner, isNull);
     expect(discoverProviders.last.profileId, isNull);
 
-    // Companion provider disposal cancels Drift-backed profile watches. Give
-    // their asynchronous cancellation timers a frame before test invariants
-    // are checked.
     await tester.pumpWidget(const SizedBox.shrink());
-    for (var i = 0; i < 3; i++) {
-      await tester.pump(const Duration(milliseconds: 1));
-    }
+    await tester.pumpAndSettle();
+    expect(trackerHttpClients.toSet(), hasLength(trackerAuthClientsPerProfile * 3));
+    _expectCloseCount(trackerHttpClients, 1);
   });
 }
 
+void _expectCloseCount(Iterable<FakeHttpClient> clients, int expected) {
+  for (final client in clients) {
+    expect(client.closeCount, expected);
+  }
+}
+
 class _ProfileProbeShell extends StatefulWidget {
   const _ProfileProbeShell({
     required this.discoverProviders,

test/providers/trackers_provider_test.dart

@@ -10,6 +10,7 @@ import 'package:plezy/services/trackers/tracker_session.dart';
 import 'package:plezy/services/trackers/mal/mal_tracker.dart';
 import 'package:plezy/services/trackers/simkl/simkl_tracker.dart';
 
+import '../test_helpers/io_fakes.dart';
 import '../test_helpers/prefs.dart';
 
 final _malStore = trackerAccountStore(TrackerService.mal);
@@ -62,6 +63,31 @@ void main() {
       p.dispose();
     });
 
+    test('forTesting owns one fresh client per eager auth owner', () {
+      final clients = <FakeHttpClient>[];
+      final p = TrackersProvider.forTesting(
+        connectPipeline: _ControlledConnectPipeline(_mal()).call,
+        httpClientFactory: () {
+          final client = FakeHttpClient(200, const <int>[]);
+          clients.add(client);
+          return client;
+        },
+      );
+
+      expect(clients, hasLength(4));
+      expect(clients.toSet(), hasLength(4));
+      for (final client in clients) {
+        expect(client.closeCount, 0);
+      }
+
+      p.dispose();
+
+      for (final client in clients) {
+        expect(client.closeCount, 1);
+        expect(client.isClosed, isTrue);
+      }
+    });
+
     test('onActiveProfileChanged loads sessions from per-profile stores', () async {
       const uuid = 'profile-1';
       await _malStore.save(uuid, _mal(username: 'alice'));

test/providers/trakt_account_provider_test.dart

@@ -6,6 +6,7 @@ import 'package:plezy/services/trackers/tracker_constants.dart';
 import 'package:plezy/services/trackers/tracker_session.dart';
 import 'package:plezy/services/trakt/trakt_sync_service.dart';
 
+import '../test_helpers/io_fakes.dart';
 import '../test_helpers/prefs.dart';
 
 final _store = trackerAccountStore(TrackerService.trakt);
@@ -34,6 +35,25 @@ void main() {
       p.dispose();
     });
 
+    test('owns the injected auth client until disposal', () {
+      final clients = <FakeHttpClient>[];
+      final p = TraktAccountProvider(
+        httpClientFactory: () {
+          final client = FakeHttpClient(200, const <int>[]);
+          clients.add(client);
+          return client;
+        },
+      );
+
+      expect(clients, hasLength(1));
+      expect(clients.single.closeCount, 0);
+
+      p.dispose();
+
+      expect(clients.single.closeCount, 1);
+      expect(clients.single.isClosed, isTrue);
+    });
+
     test('onActiveProfileChanged loads stored session and notifies', () async {
       // Pre-seed the store for a specific profile uuid.
       const uuid = 'profile-1';

test/screens/explore_screen_test.dart

@@ -1,3 +1,5 @@
+import 'dart:ui' show SemanticsAction;
+
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
@@ -202,6 +204,33 @@ void main() {
     expect(FocusManager.instance.primaryFocus?.debugLabel, 'tv_browse_rail');
   });
 
+  testWidgets('source switcher announces the active source as its value', (tester) async {
+    TvDetectionService.debugSetAppleTVOverride(false);
+    final semantics = tester.ensureSemantics();
+    final sources = await _pumpExplore(tester);
+
+    var finder = find.bySemanticsLabel(t.explore.selectSource);
+    expect(finder, findsOneWidget);
+    final node = tester.getSemantics(finder);
+    var data = node.getSemanticsData();
+    expect(data.value, 'Trakt');
+    expect(data.flagsCollection.isButton, isTrue);
+    expect(data.hasAction(SemanticsAction.tap), isTrue);
+
+    node.owner!.performAction(node.id, SemanticsAction.tap);
+    await tester.pumpAndSettle();
+    await tester.tap(find.text('MyAnimeList'));
+    await tester.pumpAndSettle();
+
+    expect(sources.activeSource?.id, CatalogSourceId.mal);
+    finder = find.bySemanticsLabel(t.explore.selectSource);
+    expect(finder, findsOneWidget);
+    data = tester.getSemantics(finder).getSemanticsData();
+    expect(data.value, 'MyAnimeList');
+    expect(data.hasAction(SemanticsAction.tap), isTrue);
+    semantics.dispose();
+  });
+
   testWidgets('source switcher exposes every catalog source with its brand logo', (tester) async {
     final sources = await _pumpExplore(tester);
     tester.state<ExploreScreenState>(find.byType(ExploreScreen)).focusActiveTabIfReady();

test/screens/settings/settings_screen_test.dart

@@ -488,6 +488,7 @@ class _SettingsHarness {
     required this.theme,
     required this.trakt,
     required this.trackers,
+    required this.trackerHttpClients,
     required this.seerr,
     required this.downloadManager,
     required this.downloadProvider,
@@ -501,6 +502,7 @@ class _SettingsHarness {
   final ThemeProvider theme;
   final TraktAccountProvider trakt;
   final TrackersProvider trackers;
+  final List<FakeHttpClient> trackerHttpClients;
   final SeerrAccountProvider seerr;
   final DownloadManagerService downloadManager;
   final DownloadProvider downloadProvider;
@@ -519,6 +521,11 @@ class _SettingsHarness {
     activeProfile.dispose();
     await plexHome.dispose();
     await database.close();
+    expect(trackerHttpClients, hasLength(5));
+    expect(trackerHttpClients.toSet(), hasLength(5));
+    for (final client in trackerHttpClients) {
+      expect(client.closeCount, 1);
+    }
   }
 }
 
@@ -545,8 +552,15 @@ Future<_SettingsHarness> _pumpSettingsScreen(
   final activeProfile = ActiveProfileProvider(registry: profiles, plexHome: plexHome, connections: connections);
   final libraries = LibrariesProvider();
   final theme = ThemeProvider();
-  final trakt = TraktAccountProvider();
-  final trackers = TrackersProvider();
+  final trackerHttpClients = <FakeHttpClient>[];
+  FakeHttpClient trackerHttpClientFactory() {
+    final client = FakeHttpClient(HttpStatus.ok, const <int>[]);
+    trackerHttpClients.add(client);
+    return client;
+  }
+
+  final trakt = TraktAccountProvider(httpClientFactory: trackerHttpClientFactory);
+  final trackers = TrackersProvider(httpClientFactory: trackerHttpClientFactory);
   final seerr = SeerrAccountProvider();
   final settingsService = SettingsService.instance;
   final storageService = DownloadStorageService.instance;
@@ -582,6 +596,7 @@ Future<_SettingsHarness> _pumpSettingsScreen(
     theme: theme,
     trakt: trakt,
     trackers: trackers,
+    trackerHttpClients: trackerHttpClients,
     seerr: seerr,
     downloadManager: downloadManager,
     downloadProvider: downloadProvider,

test/screens/video_player/completion_latch_test.dart

@@ -1,4 +1,5 @@
 import 'package:flutter_test/flutter_test.dart';
+import 'package:plezy/providers/playback_state_provider.dart';
 import 'package:plezy/screens/video_player/completion_latch.dart';
 
 void main() {
@@ -78,22 +79,41 @@ void main() {
   });
 
   group('completionNavigationAction', () {
-    test('presents a resolved next episode', () {
+    test('presents a resolved next item', () {
       expect(
-        completionNavigationAction(hasNext: true, adjacentLoadFailed: false),
+        completionNavigationAction(hasNext: true, adjacentStatus: QueueNavigationStatus.found),
         CompletionNavigationAction.presentNext,
       );
     });
 
-    test('retries adjacency instead of exiting after a load failure', () {
+    test('retries queued movie adjacency instead of exiting after a load failure', () {
       expect(
-        completionNavigationAction(hasNext: false, adjacentLoadFailed: true),
+        completionNavigationAction(hasNext: false, adjacentStatus: QueueNavigationStatus.failed),
         CompletionNavigationAction.retryAdjacent,
       );
     });
 
+    test('does not exit while the initial adjacency load is unresolved', () {
+      // VideoPlayerScreen initializes adjacency status to failed until its
+      // fire-and-forget first load commits a resolved status.
+      expect(
+        completionNavigationAction(hasNext: false, adjacentStatus: QueueNavigationStatus.failed),
+        CompletionNavigationAction.retryAdjacent,
+      );
+    });
+
+    test('exits a standalone movie after adjacency resolves unavailable', () {
+      expect(
+        completionNavigationAction(hasNext: false, adjacentStatus: QueueNavigationStatus.unavailable),
+        CompletionNavigationAction.exit,
+      );
+    });
+
     test('exits only after the queue boundary was resolved', () {
-      expect(completionNavigationAction(hasNext: false, adjacentLoadFailed: false), CompletionNavigationAction.exit);
+      expect(
+        completionNavigationAction(hasNext: false, adjacentStatus: QueueNavigationStatus.boundary),
+        CompletionNavigationAction.exit,
+      );
     });
   });
 

test/services/episode_navigation_service_test.dart

@@ -6,6 +6,7 @@ import 'package:plezy/media/media_item.dart';
 import 'package:plezy/media/media_kind.dart';
 import 'package:plezy/media/media_server_client.dart';
 import 'package:plezy/media/play_queue.dart';
+import 'package:plezy/models/plex/play_queue_response.dart';
 import 'package:plezy/providers/multi_server_provider.dart';
 import 'package:plezy/providers/playback_state_provider.dart';
 import 'package:plezy/services/data_aggregation_service.dart';
@@ -26,6 +27,17 @@ MediaItem _jfEpisode(String id, {required String seriesId, ServerId? serverId})
   grandparentId: seriesId,
 );
 
+MediaItem _jfMovie(String id) => testMediaItem(
+  id: id,
+  backend: MediaBackend.jellyfin,
+  kind: MediaKind.movie,
+  title: 'Movie $id',
+  serverId: ServerId('srv-jf'),
+);
+
+PlexMediaItem _plexMovie(String id, int playQueueItemId) =>
+    PlexMediaItem(id: id, kind: MediaKind.movie, title: 'Movie $id', playQueueItemId: playQueueItemId);
+
 MediaItem _plexEpisode(String id, {required String seriesId, int? viewCount}) => testMediaItem(
   id: id,
   backend: MediaBackend.plex,
@@ -102,7 +114,7 @@ void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
 
   group('loadAdjacentEpisodes', () {
-    testWidgets('returns unavailable when no play queue is active for non-series media', (tester) async {
+    testWidgets('returns unavailable when no play queue is active for a standalone movie', (tester) async {
       final playback = PlaybackStateProvider();
       addTearDown(playback.dispose);
       final manager = _StubManager(null);
@@ -116,7 +128,7 @@ void main() {
             ChangeNotifierProvider<PlaybackStateProvider>.value(value: playback),
             ChangeNotifierProvider<MultiServerProvider>.value(value: serverProvider),
           ],
-          child: _ProbeWidget(metadata: _meta('42'), onResult: (r) => result = r),
+          child: _ProbeWidget(metadata: _jfMovie('42'), onResult: (r) => result = r),
         ),
       );
       await tester.pump();
@@ -124,11 +136,218 @@ void main() {
 
       expect(result, isNotNull);
       expect(result!.nextStatus, QueueNavigationStatus.unavailable);
+      expect(result!.previousStatus, QueueNavigationStatus.unavailable);
       expect(result!.hasNext, isFalse);
       expect(result!.hasPrevious, isFalse);
       expect(playback.isQueueActive, isFalse);
     });
 
+    testWidgets('preserves adjacency for a movie in an active local queue', (tester) async {
+      final previous = _jfMovie('movie-1');
+      final current = _jfMovie('movie-2');
+      final next = _jfMovie('movie-3');
+      final playback = PlaybackStateProvider();
+      addTearDown(playback.dispose);
+      playback.setPlaybackFromLocalQueue(
+        LocalPlayQueue(
+          id: 'jellyfin:playlist-movies',
+          items: [previous, current, next],
+          currentIndex: 1,
+          backendId: MediaBackend.jellyfin.id,
+        ),
+        contextKey: 'playlist-movies',
+      );
+      final client = _RecordingClient(seriesEpisodes: const []);
+      final manager = _StubManager(client);
+      final serverProvider = MultiServerProvider(manager, DataAggregationService(manager));
+      addTearDown(serverProvider.dispose);
+
+      AdjacentEpisodes? result;
+      await tester.pumpWidget(
+        MultiProvider(
+          providers: [
+            ChangeNotifierProvider<PlaybackStateProvider>.value(value: playback),
+            ChangeNotifierProvider<MultiServerProvider>.value(value: serverProvider),
+          ],
+          child: _ProbeWidget(metadata: current, onResult: (r) => result = r),
+        ),
+      );
+      await tester.pump();
+      await tester.pump();
+
+      expect(client.seriesQueueCalls, isEmpty);
+      expect(playback.isQueueActive, isTrue);
+      expect(playback.shuffleContextKey, 'playlist-movies');
+      expect(playback.currentQueueItem, same(current));
+      expect(playback.currentPlayQueueItemID, 1);
+      expect(playback.loadedItems, [previous, current, next]);
+      expect(result, isNotNull);
+      expect(result!.nextStatus, QueueNavigationStatus.found);
+      expect(result!.previousStatus, QueueNavigationStatus.found);
+      expect(result!.next, same(next));
+      expect(result!.previous, same(previous));
+      expect(result!.hasNext, isTrue);
+      expect(result!.hasPrevious, isTrue);
+    });
+
+    testWidgets('preserves a local movie collection queue for a current-item clone', (tester) async {
+      final previous = _jfMovie('movie-1');
+      final storedCurrent = _jfMovie('movie-2');
+      final next = _jfMovie('movie-3');
+      final playback = PlaybackStateProvider();
+      addTearDown(playback.dispose);
+      playback.setPlaybackFromLocalQueue(
+        LocalPlayQueue(
+          id: 'jellyfin:collection-movies',
+          items: [previous, storedCurrent, next],
+          currentIndex: 1,
+          backendId: MediaBackend.jellyfin.id,
+        ),
+        contextKey: 'collection-movies',
+      );
+      final client = _RecordingClient(seriesEpisodes: const []);
+      final manager = _StubManager(client);
+      final serverProvider = MultiServerProvider(manager, DataAggregationService(manager));
+      addTearDown(serverProvider.dispose);
+      final currentClone = storedCurrent.copyWith(viewOffsetMs: 42);
+
+      AdjacentEpisodes? result;
+      await tester.pumpWidget(
+        MultiProvider(
+          providers: [
+            ChangeNotifierProvider<PlaybackStateProvider>.value(value: playback),
+            ChangeNotifierProvider<MultiServerProvider>.value(value: serverProvider),
+          ],
+          child: _ProbeWidget(metadata: currentClone, onResult: (r) => result = r),
+        ),
+      );
+      await tester.pump();
+      await tester.pump();
+
+      expect(client.seriesQueueCalls, isEmpty);
+      expect(playback.isQueueActive, isTrue);
+      expect(playback.shuffleContextKey, 'collection-movies');
+      expect(playback.currentQueueItem, same(storedCurrent));
+      expect(playback.currentPlayQueueItemID, 1);
+      expect(playback.loadedItems, [previous, storedCurrent, next]);
+      expect(result, isNotNull);
+      expect(result!.next, same(next));
+      expect(result!.previous, same(previous));
+      expect(result!.hasNext, isTrue);
+      expect(result!.hasPrevious, isTrue);
+    });
+
+    testWidgets('extends a Plex movie queue window for adjacency', (tester) async {
+      final previous = _plexMovie('movie-1', 1001);
+      final current = _plexMovie('movie-2', 1002);
+      final next = _plexMovie('movie-3', 1003);
+      final playback = PlaybackStateProvider();
+      addTearDown(playback.dispose);
+      await playback.setPlaybackFromPlayQueue(
+        PlayQueueResponse(
+          playQueueID: 77,
+          playQueueSelectedItemID: 1002,
+          playQueueShuffled: false,
+          playQueueTotalCount: 3,
+          playQueueVersion: 1,
+          items: [current],
+        ),
+        'collection-movies',
+      );
+      var windowFetches = 0;
+      String? requestedCenter;
+      playback.setPlayQueueWindowFetcher((playQueueId, {center, window = 50}) async {
+        windowFetches++;
+        requestedCenter = center;
+        expect(playQueueId, 77);
+        return PlayQueueResponse(
+          playQueueID: playQueueId,
+          playQueueSelectedItemID: 1002,
+          playQueueShuffled: false,
+          playQueueTotalCount: 3,
+          playQueueVersion: 2,
+          items: [previous, current, next],
+        );
+      });
+      final manager = _StubManager(null);
+      final serverProvider = MultiServerProvider(manager, DataAggregationService(manager));
+      addTearDown(serverProvider.dispose);
+
+      AdjacentEpisodes? result;
+      await tester.pumpWidget(
+        MultiProvider(
+          providers: [
+            ChangeNotifierProvider<PlaybackStateProvider>.value(value: playback),
+            ChangeNotifierProvider<MultiServerProvider>.value(value: serverProvider),
+          ],
+          child: _ProbeWidget(metadata: current, onResult: (r) => result = r),
+        ),
+      );
+      await tester.pump();
+      await tester.pump();
+
+      expect(windowFetches, 1);
+      expect(requestedCenter, '1002');
+      expect(playback.isQueueActive, isTrue);
+      expect(playback.playQueueId, 77);
+      expect(playback.currentQueueItem, same(current));
+      expect(playback.currentPlayQueueItemID, 1002);
+      expect(playback.loadedItems, [previous, current, next]);
+      expect(result, isNotNull);
+      expect(result!.nextStatus, QueueNavigationStatus.found);
+      expect(result!.previousStatus, QueueNavigationStatus.found);
+      expect(result!.next, same(next));
+      expect(result!.previous, same(previous));
+      expect(result!.hasNext, isTrue);
+      expect(result!.hasPrevious, isTrue);
+    });
+
+    testWidgets('does not use an unrelated active queue for a standalone movie', (tester) async {
+      final queuedPrevious = _jfMovie('queued-1');
+      final queuedCurrent = _jfMovie('queued-2');
+      final unrelated = _jfMovie('unrelated');
+      final playback = PlaybackStateProvider();
+      addTearDown(playback.dispose);
+      playback.setPlaybackFromLocalQueue(
+        LocalPlayQueue(
+          id: 'jellyfin:stale-playlist',
+          items: [queuedPrevious, queuedCurrent],
+          currentIndex: 1,
+          backendId: MediaBackend.jellyfin.id,
+        ),
+        contextKey: 'stale-playlist',
+      );
+      final client = _RecordingClient(seriesEpisodes: const []);
+      final manager = _StubManager(client);
+      final serverProvider = MultiServerProvider(manager, DataAggregationService(manager));
+      addTearDown(serverProvider.dispose);
+
+      AdjacentEpisodes? result;
+      await tester.pumpWidget(
+        MultiProvider(
+          providers: [
+            ChangeNotifierProvider<PlaybackStateProvider>.value(value: playback),
+            ChangeNotifierProvider<MultiServerProvider>.value(value: serverProvider),
+          ],
+          child: _ProbeWidget(metadata: unrelated, onResult: (r) => result = r),
+        ),
+      );
+      await tester.pump();
+      await tester.pump();
+
+      expect(client.seriesQueueCalls, isEmpty);
+      expect(playback.isQueueActive, isTrue);
+      expect(playback.shuffleContextKey, 'stale-playlist');
+      expect(playback.currentQueueItem, same(queuedCurrent));
+      expect(playback.currentPlayQueueItemID, 1);
+      expect(playback.loadedItems, [queuedPrevious, queuedCurrent]);
+      expect(result, isNotNull);
+      expect(result!.nextStatus, QueueNavigationStatus.failed);
+      expect(result!.previousStatus, QueueNavigationStatus.failed);
+      expect(result!.hasNext, isFalse);
+      expect(result!.hasPrevious, isFalse);
+    });
+
     testWidgets('catches downstream exceptions and reports failed adjacency', (tester) async {
       // Required providers are absent, so context.read throws. The service
       // converts the exception into an explicit failed result.

test/services/music/music_playback_service_test.dart

@@ -36,6 +36,22 @@ MediaItem _track(String id) => testMediaItem(
 
 String _urlFor(MediaItem track) => 'fake://${track.id}';
 
+class _CallGate {
+  final Completer<void> _entered = Completer<void>();
+  final Completer<void> _released = Completer<void>();
+
+  Future<void> get entered => _entered.future;
+
+  Future<void> block() {
+    if (!_entered.isCompleted) _entered.complete();
+    return _released.future;
+  }
+
+  void release() {
+    if (!_released.isCompleted) _released.complete();
+  }
+}
+
 /// In-memory audio player: records calls, exposes manual stream controllers
 /// so tests drive transitions/completion/errors deterministically.
 class FakePlayer implements Player {
@@ -91,6 +107,7 @@ class FakePlayer implements Player {
   final List<double> volumes = [];
   Completer<void>? playGate;
   Completer<void>? pauseGate;
+  final List<_CallGate> _openGates = [];
 
   /// Arming these URIs throws, simulating a native setNext failure.
   final Set<String> failingSetNextUris = {};
@@ -104,9 +121,15 @@ class FakePlayer implements Player {
   /// consumed by an auto-advance ([emitTransition]).
   Media? get armed => _armedMedia;
 
+  _CallGate _gateNextOpen() {
+    final gate = _CallGate();
+    _openGates.add(gate);
+    return gate;
+  }
+
   void emitTransition(String uri) {
     _armedMedia = null; // the backend advanced into the armed entry
-    _state = _state.copyWith(position: Duration.zero, duration: _trackDuration);
+    _state = _state.copyWith(completed: false, position: Duration.zero, duration: _trackDuration);
     trackTransitionCtrl.add(uri);
   }
 
@@ -115,6 +138,16 @@ class FakePlayer implements Player {
     completedCtrl.add(true);
   }
 
+  /// Emits the real boundary contract: completed always pulses, but a
+  /// transition can follow only when the native playlist still has an arm.
+  bool emitNaturalBoundary() {
+    final armed = _armedMedia;
+    emitCompleted();
+    if (armed == null) return false;
+    emitTransition(armed.uri);
+    return true;
+  }
+
   void emitError(String message) => errorCtrl.add(PlayerError(message));
 
   void setPosition(Duration position) {
@@ -171,6 +204,11 @@ class FakePlayer implements Player {
     List<SubtitleTrack>? externalSubtitles,
     Duration? timelineDuration,
   }) async {
+    final gate = _openGates.isEmpty ? null : _openGates.removeAt(0);
+    if (gate != null) await gate.block();
+    // PlayerNative.open uses loadfile replace, which drops any armed entry.
+    // Clear before recording the committed replacement open.
+    _armedMedia = null;
     openedUris.add(media.uri);
     _state = _state.copyWith(playing: play, completed: false, position: Duration.zero, duration: _trackDuration);
     if (play) playingCtrl.add(true);
@@ -431,15 +469,24 @@ class FakeMusicSourceResolver implements MusicSourceResolver {
   final MediaServerClient? client;
   final Set<String> failingIds = {};
   final Map<String, int> resolveCounts = {};
-  final Map<String, Completer<void>> resolveGates = {};
+  final Map<String, List<_CallGate>> _resolveGates = {};
 
   /// Per-track URL overrides (e.g. content:// shapes for offline tracks).
   final Map<String, String> urlOverrides = {};
 
+  _CallGate _gateNextResolve(String trackId) {
+    final gate = _CallGate();
+    (_resolveGates[trackId] ??= []).add(gate);
+    return gate;
+  }
+
   @override
   Future<MusicSource> resolve(MediaItem track) async {
     resolveCounts[track.id] = (resolveCounts[track.id] ?? 0) + 1;
-    await resolveGates[track.id]?.future;
+    final gates = _resolveGates[track.id];
+    final gate = gates == null || gates.isEmpty ? null : gates.removeAt(0);
+    if (gates?.isEmpty ?? false) _resolveGates.remove(track.id);
+    if (gate != null) await gate.block();
     if (failingIds.contains(track.id)) {
       throw StateError('resolve failed for ${track.id}');
     }
@@ -712,32 +759,137 @@ void main() {
   });
 
   test('a superseded slow gapless resolve cannot overwrite the newly requested arm', () async {
-    final oldArmGate = Completer<void>();
-    h.resolver.resolveGates[t2.id] = oldArmGate;
+    final oldArmGate = h.resolver._gateNextResolve(t2.id);
 
     await h.playTracks([t1, t2]);
+    await oldArmGate.entered;
     expect(h.player.armed, isNull);
 
     h.service.addNext([t3]);
-    oldArmGate.complete();
+    oldArmGate.release();
     await pumpEventQueue();
 
     expect(h.player.armed?.uri, _urlFor(t3));
   });
 
   test('end-of-track sleep invalidates a slow gapless resolve', () async {
-    final armGate = Completer<void>();
-    h.resolver.resolveGates[t2.id] = armGate;
+    final armGate = h.resolver._gateNextResolve(t2.id);
 
     await h.playTracks([t1, t2]);
+    await armGate.entered;
     h.service.setSleepTimer(null, endOfTrack: true);
-    armGate.complete();
+    armGate.release();
     await pumpEventQueue();
 
     expect(h.service.sleepTimerEndOfTrack, isTrue);
     expect(h.player.armed, isNull);
   });
 
+  test('manual advance cancels a blocked arm until replacement open commits', () async {
+    final staleArmGate = h.resolver._gateNextResolve(t2.id);
+    final replacementResolveGate = h.resolver._gateNextResolve(t2.id);
+
+    await h.playTracks([t1, t2, t3]);
+    await staleArmGate.entered;
+
+    final replacementOpenGate = h.player._gateNextOpen();
+    final advance = h.service.next();
+    await replacementResolveGate.entered;
+    replacementResolveGate.release();
+    await replacementOpenGate.entered;
+
+    staleArmGate.release();
+    await pumpEventQueue();
+
+    expect(h.resolver.resolveCounts[t3.id], isNull);
+    expect(h.player.armed, isNull);
+    expect(h.player.openedUris, [_urlFor(t1)]);
+
+    replacementOpenGate.release();
+    await advance;
+    await pumpEventQueue();
+
+    expect(h.service.currentTrack?.id, t2.id);
+    expect(h.player.openedUris, [_urlFor(t1), _urlFor(t2)]);
+    expect(h.resolver.resolveCounts[t3.id], 1);
+    expect(h.player.armed?.uri, _urlFor(t3));
+
+    expect(h.player.emitNaturalBoundary(), isTrue);
+    await pumpEventQueue();
+
+    expect(h.service.currentTrack?.id, t3.id);
+    expect(h.service.currentIndex, 2);
+    expect(h.player.openedUris, [_urlFor(t1), _urlFor(t2)], reason: 'C must advance from the native arm');
+  });
+
+  test('queue edits during a replacement open coalesce into the latest post-open arm', () async {
+    final t4 = _track('t4');
+    final t5 = _track('t5');
+    await h.playTracks([t1, t2, t3]);
+
+    final replacementOpenGate = h.player._gateNextOpen();
+    final advance = h.service.next();
+    await replacementOpenGate.entered;
+    final latestArmGate = h.resolver._gateNextResolve(t5.id);
+
+    h.service.addNext([t4]);
+    h.service.addNext([t5]);
+    await pumpEventQueue();
+
+    expect(h.resolver.resolveCounts[t4.id], isNull);
+    expect(h.resolver.resolveCounts[t5.id], isNull);
+    expect(h.player.armed, isNull);
+
+    replacementOpenGate.release();
+    await advance;
+    await latestArmGate.entered;
+
+    expect(h.resolver.resolveCounts[t4.id], isNull);
+    expect(h.resolver.resolveCounts[t5.id], 1);
+    expect(h.player.armed, isNull);
+
+    latestArmGate.release();
+    await pumpEventQueue();
+
+    expect(h.service.queue.map((track) => track.id), [t1.id, t2.id, t5.id, t4.id, t3.id]);
+    expect(h.player.armed?.uri, _urlFor(t5));
+    expect(h.player.emitNaturalBoundary(), isTrue);
+    await pumpEventQueue();
+    expect(h.service.currentTrack?.id, t5.id);
+    expect(h.player.openedUris, [_urlFor(t1), _urlFor(t2)]);
+  });
+
+  test('completed fallback cancels a blocked arm until replacement open commits', () async {
+    final staleArmGate = h.resolver._gateNextResolve(t2.id);
+    final replacementResolveGate = h.resolver._gateNextResolve(t2.id);
+
+    await h.playTracks([t1, t2, t3]);
+    await staleArmGate.entered;
+    final replacementOpenGate = h.player._gateNextOpen();
+
+    h.player.emitCompleted();
+    await replacementResolveGate.entered;
+    replacementResolveGate.release();
+    await replacementOpenGate.entered;
+
+    staleArmGate.release();
+    await pumpEventQueue();
+
+    expect(h.resolver.resolveCounts[t3.id], isNull);
+    expect(h.player.armed, isNull);
+
+    replacementOpenGate.release();
+    await pumpEventQueue();
+
+    expect(h.service.currentTrack?.id, t2.id);
+    expect(h.player.openedUris, [_urlFor(t1), _urlFor(t2)]);
+    expect(h.player.armed?.uri, _urlFor(t3));
+    expect(h.player.emitNaturalBoundary(), isTrue);
+    await pumpEventQueue();
+    expect(h.service.currentTrack?.id, t3.id);
+    expect(h.player.openedUris, [_urlFor(t1), _urlFor(t2)]);
+  });
+
   test('a slow instant mix cannot replace a newer explicit queue', () async {
     final mixGate = Completer<List<MediaItem>>();
     h.client.instantMixGate = mixGate;
@@ -941,6 +1093,23 @@ void main() {
     expect(h.client.reportsFor('stopped').map((r) => r.itemId), ['t1']);
   });
 
+  test('failed explicit resume does not publish playing status', () async {
+    await h.playTracks([t1]);
+    await h.service.pause();
+    final gate = Completer<void>();
+    final denied = StateError('audio focus denied');
+    h.player.playGate = gate;
+
+    final resume = h.service.play();
+    expect(h.service.status, MusicPlaybackStatus.paused);
+    final failureExpectation = expectLater(resume, throwsA(same(denied)));
+    gate.completeError(denied, StackTrace.current);
+    await failureExpectation;
+
+    expect(h.player.playCalls, 1);
+    expect(h.service.status, MusicPlaybackStatus.paused);
+  });
+
   test('a late play completion cannot revive a stopped session', () async {
     await h.playTracks([t1]);
     await h.service.pause();

test/services/plex_client_http_contract_test.dart

@@ -34,6 +34,232 @@ void main() {
   PlexClient makeClient(Future<http.Response> Function(http.Request request) handler) =>
       testPlexClient(serverId: publicServerId, profileScopeId: defaultProfileScopeId, handler: handler);
 
+  group('Plex item lookup HTTP/cache contract', () {
+    const jsonHeaders = {'content-type': 'application/json'};
+    final apis = [(name: 'fetchItem', includeOnDeck: false), (name: 'fetchItemWithOnDeck', includeOnDeck: true)];
+
+    String endpointFor(String id) => '/library/metadata/$id';
+
+    Map<String, dynamic> itemResponse(String id, {String title = 'Cached item'}) => {
+      'MediaContainer': {
+        'librarySectionID': 7,
+        'librarySectionTitle': 'Movies',
+        'Metadata': [
+          {'ratingKey': id, 'type': 'movie', 'title': title, 'summary': 'Cached summary'},
+        ],
+      },
+    };
+
+    http.Response jsonResponse(Object? body, int statusCode) =>
+        http.Response(jsonEncode(body), statusCode, headers: jsonHeaders);
+
+    Future<Map<String, dynamic>> seedItem(String id, {String title = 'Cached item'}) async {
+      final response = itemResponse(id, title: title);
+      await PlexApiCache.instance.put(defaultProfileScopeId.cacheServerId, endpointFor(id), response);
+      return response;
+    }
+
+    Future<({MediaItem? item, MediaItem? onDeckEpisode})> lookup(
+      PlexClient client,
+      String id, {
+      required bool includeOnDeck,
+    }) async {
+      if (includeOnDeck) {
+        final result = await client.fetchItemWithOnDeck(id);
+        return result;
+      }
+      return (item: await client.fetchItem(id), onDeckEpisode: null);
+    }
+
+    for (final api in apis) {
+      for (final cacheState in [(name: 'uncached', seed: false), (name: 'cached', seed: true)]) {
+        test('${api.name} maps a ${cacheState.name} HTTP 404 to no item', () async {
+          final id = '${api.name}-${cacheState.name}-404';
+          Map<String, dynamic>? seededResponse;
+          if (cacheState.seed) {
+            seededResponse = await seedItem(id);
+          }
+          var requestCount = 0;
+          final client = makeClient((_) async {
+            requestCount++;
+            return jsonResponse({
+              'MediaContainer': {
+                'Metadata': [
+                  {'ratingKey': 'must-not-parse', 'type': 'movie', 'title': 'Must Not Parse'},
+                ],
+              },
+            }, 404);
+          });
+          addTearDown(client.close);
+
+          final result = await lookup(client, id, includeOnDeck: api.includeOnDeck);
+
+          expect(result.item, isNull);
+          expect(result.onDeckEpisode, isNull);
+          expect(requestCount, 1);
+          final cached = await PlexApiCache.instance.get(defaultProfileScopeId.cacheServerId, endpointFor(id));
+          if (cacheState.seed) {
+            expect(cached, seededResponse);
+          } else {
+            expect(cached, isNull);
+          }
+        });
+      }
+
+      for (final statusCode in [401, 403, 500]) {
+        test('${api.name} propagates cached HTTP $statusCode instead of serving stale metadata', () async {
+          final id = '${api.name}-cached-$statusCode';
+          final seededResponse = await seedItem(id);
+          var requestCount = 0;
+          final client = makeClient((_) async {
+            requestCount++;
+            return jsonResponse(itemResponse('must-not-parse', title: 'Must Not Parse'), statusCode);
+          });
+          addTearDown(client.close);
+
+          await expectLater(
+            lookup(client, id, includeOnDeck: api.includeOnDeck),
+            throwsA(
+              isA<MediaServerHttpException>()
+                  .having((error) => error.statusCode, 'statusCode', statusCode)
+                  .having((error) => error.requestUri?.path, 'request path', endpointFor(id)),
+            ),
+          );
+
+          expect(requestCount, 1);
+          expect(await PlexApiCache.instance.get(defaultProfileScopeId.cacheServerId, endpointFor(id)), seededResponse);
+        });
+      }
+
+      test('${api.name} serves cached metadata after a transient timeout', () async {
+        final id = '${api.name}-cached-timeout';
+        await seedItem(id);
+        var requestCount = 0;
+        final client = makeClient((_) {
+          requestCount++;
+          return Future<http.Response>.error(TimeoutException('item lookup timed out'));
+        });
+        addTearDown(client.close);
+
+        final result = await lookup(client, id, includeOnDeck: api.includeOnDeck);
+
+        expect(result.item, isNotNull);
+        expect(result.item!.id, id);
+        expect(result.item!.title, 'Cached item');
+        expect(result.onDeckEpisode, isNull);
+        expect(requestCount, 1);
+      });
+
+      test('${api.name} propagates a transient timeout when no cache row exists', () async {
+        final id = '${api.name}-uncached-timeout';
+        var requestCount = 0;
+        final client = makeClient((_) {
+          requestCount++;
+          return Future<http.Response>.error(TimeoutException('item lookup timed out'));
+        });
+        addTearDown(client.close);
+
+        await expectLater(
+          lookup(client, id, includeOnDeck: api.includeOnDeck),
+          throwsA(
+            isA<MediaServerHttpException>()
+                .having((error) => error.type, 'type', MediaServerHttpErrorType.connectionTimeout)
+                .having((error) => error.isTransient, 'isTransient', isTrue),
+          ),
+        );
+
+        expect(requestCount, 1);
+      });
+
+      test('${api.name} propagates cancellation despite cached metadata', () async {
+        final id = '${api.name}-cached-cancelled';
+        final seededResponse = await seedItem(id);
+        var requestCount = 0;
+        final client = makeClient((request) {
+          requestCount++;
+          return Future<http.Response>.error(http.RequestAbortedException(request.url));
+        });
+        addTearDown(client.close);
+
+        await expectLater(
+          lookup(client, id, includeOnDeck: api.includeOnDeck),
+          throwsA(
+            isA<MediaServerHttpException>()
+                .having((error) => error.isCancellation, 'isCancellation', isTrue)
+                .having((error) => error.requestUri?.path, 'request path', endpointFor(id)),
+          ),
+        );
+
+        expect(requestCount, 1);
+        expect(await PlexApiCache.instance.get(defaultProfileScopeId.cacheServerId, endpointFor(id)), seededResponse);
+      });
+
+      test('${api.name} propagates malformed JSON despite cached metadata', () async {
+        final id = '${api.name}-cached-malformed-json';
+        final seededResponse = await seedItem(id);
+        var requestCount = 0;
+        final client = makeClient((_) async {
+          requestCount++;
+          return http.Response('{', 200, headers: jsonHeaders);
+        });
+        addTearDown(client.close);
+
+        await expectLater(
+          lookup(client, id, includeOnDeck: api.includeOnDeck),
+          throwsA(
+            isA<MediaServerHttpException>()
+                .having((error) => error.type, 'type', MediaServerHttpErrorType.unknown)
+                .having((error) => error.statusCode, 'statusCode', 200),
+          ),
+        );
+
+        expect(requestCount, 1);
+        expect(await PlexApiCache.instance.get(defaultProfileScopeId.cacheServerId, endpointFor(id)), seededResponse);
+      });
+
+      test('${api.name} propagates a valid JSON payload rejected by the item DTO', () async {
+        final id = '${api.name}-cached-unmappable';
+        await seedItem(id);
+        var requestCount = 0;
+        final client = makeClient((_) async {
+          requestCount++;
+          return jsonResponse({
+            'MediaContainer': {
+              'Metadata': [
+                {'ratingKey': id, 'type': 'movie', 'title': 7},
+              ],
+            },
+          }, 200);
+        });
+        addTearDown(client.close);
+
+        await expectLater(lookup(client, id, includeOnDeck: api.includeOnDeck), throwsA(isA<TypeError>()));
+
+        expect(requestCount, 1);
+      });
+
+      test('${api.name} uses profile-scoped cache without HTTP while explicitly offline', () async {
+        final id = '${api.name}-offline';
+        await seedItem(id);
+        var requestCount = 0;
+        final client = makeClient((_) async {
+          requestCount++;
+          return jsonResponse(const {'mustNotReachNetwork': true}, 500);
+        });
+        addTearDown(client.close);
+        client.setOfflineMode(true);
+
+        final result = await lookup(client, id, includeOnDeck: api.includeOnDeck);
+
+        expect(result.item, isNotNull);
+        expect(result.item!.id, id);
+        expect(result.item!.title, 'Cached item');
+        expect(result.onDeckEpisode, isNull);
+        expect(requestCount, 0);
+      });
+    }
+  });
+
   group('Plex mutation result families', () {
     test('void mutation completes on success and preserves status/transport failures', () async {
       final item = testMediaItem(

test/services/shader_asset_loader_test.dart

@@ -171,7 +171,7 @@ void main() {
 
     final shaders = await ShaderAssetLoader.getShadersForPreset(customPreset(storedName));
     expect(shaders, hasLength(1));
-    expect(path.dirname(shaders.single), path.join(supportDirectory.path, 'custom_shaders'));
+    expect(path.equals(path.dirname(shaders.single), path.join(supportDirectory.path, 'custom_shaders')), isTrue);
     expect(await File(shaders.single).readAsString(), 'shader');
 
     await ShaderAssetLoader.deleteCustomShader(storedName);
@@ -185,7 +185,9 @@ void main() {
     final managedFile = File(path.join(customDirectory.path, storedName))..writeAsStringSync('legacy');
 
     expect(ShaderAssetLoader.isValidCustomShaderFileName(storedName), isTrue);
-    expect(await ShaderAssetLoader.getShadersForPreset(customPreset(storedName)), [managedFile.path]);
+    final shaders = await ShaderAssetLoader.getShadersForPreset(customPreset(storedName));
+    expect(shaders, hasLength(1));
+    expect(path.equals(shaders.single, managedFile.path), isTrue);
 
     await ShaderAssetLoader.deleteCustomShader(storedName);
     expect(managedFile.existsSync(), isFalse);

test/services/track_manager_test.dart

@@ -178,6 +178,15 @@ MediaSourceInfo _mediaInfoWithSubtitles({bool selected = false}) {
   );
 }
 
+MediaSourceInfo _metadataFreeDirectMediaInfo({bool selected = true}) {
+  return MediaSourceInfo(
+    videoUrl: 'https://example.com/video.mp4',
+    audioTracks: [MediaAudioTrack(id: 1, languageCode: 'eng', selected: true)],
+    subtitleTracks: [MediaSubtitleTrack(id: 20, codec: 'ass', selected: selected, forced: false)],
+    chapters: const [],
+  );
+}
+
 Future<void> _drainAsync() async {
   for (var i = 0; i < 5; i++) {
     await Future<void>.delayed(Duration.zero);
@@ -373,6 +382,58 @@ void main() {
       expect(player.selectedSubtitle.single.id, 'no');
     });
 
+    test('complete metadata-free direct catalog applies tracks without the five-second fallback', () async {
+      final settings = await SettingsService.getInstance();
+      await settings.write(SettingsService.defaultPlaybackSpeed, 1.5);
+
+      fakeAsync((async) {
+        final player = _FakePlayer(
+          tracks: const Tracks(
+            audio: [AudioTrack(id: 'native-audio', language: 'eng')],
+            subtitle: [SubtitleTrack(id: 'native-ass', codec: 'ass')],
+          ),
+        );
+        final mgr = _make(
+          player: player,
+          mediaInfo: _metadataFreeDirectMediaInfo(),
+          preferredSubtitleTrack: const SubtitleTrack(id: 'source:20', codec: 'ass'),
+        );
+
+        mgr.applyTrackSelectionWhenReady();
+        async.flushMicrotasks();
+
+        expect(player.selectedAudio.map((track) => track.id), ['native-audio']);
+        expect(player.selectedSubtitle.map((track) => track.id), ['native-ass']);
+        expect(player.rates, [1.5]);
+        expect(async.nonPeriodicTimerCount, 0);
+        mgr.dispose();
+      });
+    });
+
+    test('server-selected metadata-free direct catalog applies without the five-second fallback', () async {
+      final settings = await SettingsService.getInstance();
+      await settings.write(SettingsService.defaultPlaybackSpeed, 1.25);
+
+      fakeAsync((async) {
+        final player = _FakePlayer(
+          tracks: const Tracks(
+            audio: [AudioTrack(id: 'native-audio', language: 'eng')],
+            subtitle: [SubtitleTrack(id: 'native-ass', codec: 'ass')],
+          ),
+        );
+        final mgr = _make(player: player, mediaInfo: _metadataFreeDirectMediaInfo());
+
+        mgr.applyTrackSelectionWhenReady();
+        async.flushMicrotasks();
+
+        expect(player.selectedAudio.map((track) => track.id), ['native-audio']);
+        expect(player.selectedSubtitle.map((track) => track.id), ['native-ass']);
+        expect(player.rates, [1.25]);
+        expect(async.nonPeriodicTimerCount, 0);
+        mgr.dispose();
+      });
+    });
+
     test('waits through a partial catalog until the selected Plex subtitle arrives', () async {
       await SettingsService.getInstance();
       final player = _FakePlayer(
@@ -380,7 +441,16 @@ void main() {
           audio: [AudioTrack(id: '1', language: 'eng')],
         ),
       );
-      final mgr = _make(player: player, mediaInfo: _mediaInfoWithSubtitles(selected: true));
+      final mediaInfo = MediaSourceInfo(
+        videoUrl: 'https://example.com/video.mp4',
+        audioTracks: [MediaAudioTrack(id: 1, languageCode: 'eng', selected: true)],
+        subtitleTracks: [
+          MediaSubtitleTrack(id: 10, languageCode: 'eng', selected: true, forced: false),
+          MediaSubtitleTrack(id: 11, languageCode: 'fre', selected: false, forced: false),
+        ],
+        chapters: const [],
+      );
+      final mgr = _make(player: player, mediaInfo: mediaInfo);
       addTearDown(mgr.dispose);
 
       mgr.applyTrackSelectionWhenReady();
@@ -414,10 +484,19 @@ void main() {
           audio: [AudioTrack(id: '1', language: 'eng')],
         ),
       );
+      final mediaInfo = MediaSourceInfo(
+        videoUrl: 'https://example.com/video.mp4',
+        audioTracks: [MediaAudioTrack(id: 1, languageCode: 'eng', selected: true)],
+        subtitleTracks: [
+          MediaSubtitleTrack(id: 10, languageCode: 'eng', selected: true, forced: false),
+          MediaSubtitleTrack(id: 11, languageCode: 'fre', selected: false, forced: false),
+        ],
+        chapters: const [],
+      );
       final mgr = _make(
         player: player,
-        mediaInfo: _mediaInfoWithSubtitles(selected: true),
-        preferredSubtitleTrack: const SubtitleTrack(id: 'previous', language: 'fre'),
+        mediaInfo: mediaInfo,
+        preferredSubtitleTrack: const SubtitleTrack(id: 'source:11', language: 'fre'),
       );
       addTearDown(mgr.dispose);
 

test/services/track_selection_service_test.dart

@@ -31,10 +31,10 @@ import '../test_helpers/media_items.dart';
 //       Plex-selected, Plex-server-explicit-no-subtitles, default fallback,
 //       and the off-by-default branch.
 //
-// Top-level matching helpers (`findMpvTrackForPlexAudio`,
-// `findPlexTrackForMpvAudio`, `findMpvTrackForPlexSubtitle`,
-// `findPlexTrackForMpvSubtitle`) are exercised indirectly through
-// `selectAudioTrack` (Priority 2) and `selectSubtitleTrack` (Priority 2).
+// Top-level subtitle matching helpers are exercised directly for complete,
+// partial, unique, ambiguous, and container catalogs. Audio helpers are
+// exercised through `selectAudioTrack` (Priority 2) and their focused
+// disambiguation tests below.
 //
 // What's NOT covered:
 //   - `selectAndApplyTracks` — depends on a real Player + SettingsService
@@ -478,6 +478,86 @@ void main() {
       expect(result.track.language, 'fre');
     });
 
+    test('complete metadata-free direct catalog selects its unique native subtitle', () {
+      final sourceTrack = _plexSub(20, codec: 'ass', selected: true);
+      final info = _info(subs: [sourceTrack]);
+      final nativeTrack = _sub('native-ass', codec: 'ass');
+      final service = _svc(info: info);
+
+      final preferredResult = service.selectSubtitleTrack(
+        [nativeTrack],
+        const SubtitleTrack(id: 'source:20', codec: 'ass'),
+        null,
+      )!;
+      final serverResult = service.selectSubtitleTrack([nativeTrack], null, null)!;
+
+      expect(preferredResult.priority, TrackSelectionPriority.navigation);
+      expect(preferredResult.track, same(nativeTrack));
+      expect(serverResult.priority, TrackSelectionPriority.serverSelected);
+      expect(serverResult.track, same(nativeTrack));
+      expect(findMpvTrackForPlexSubtitle(sourceTrack, [nativeTrack], allPlexTracks: [sourceTrack]), same(nativeTrack));
+      expect(findPlexTrackForMpvSubtitle(nativeTrack, [sourceTrack], allMpvTracks: [nativeTrack]), same(sourceTrack));
+    });
+
+    test('complete low-metadata direct catalog uses facts instead of ordinal order', () {
+      final sourceAss = _plexSub(30, codec: 'ass', selected: true);
+      final sourceSrt = _plexSub(31, codec: 'srt');
+      final plexTracks = [sourceAss, sourceSrt];
+      final nativeSrt = _sub('native-srt', codec: 'srt');
+      final nativeAss = _sub('native-ass', codec: 'ass');
+      final nativeTracks = [nativeSrt, nativeAss];
+
+      expect(findMpvTrackForPlexSubtitle(sourceAss, nativeTracks, allPlexTracks: plexTracks), same(nativeAss));
+      expect(findPlexTrackForMpvSubtitle(nativeAss, plexTracks, allMpvTracks: nativeTracks), same(sourceAss));
+    });
+
+    test('ambiguous metadata-free direct catalog does not use ordinal fallback', () {
+      final selectedSource = _plexSub(40, codec: 'ass', selected: true);
+      final otherSource = _plexSub(41, codec: 'ass');
+      final plexTracks = [selectedSource, otherSource];
+      final nativeTracks = [_sub('native-second', codec: 'ass'), _sub('native-first', codec: 'ass')];
+      final service = _svc(info: _info(subs: plexTracks));
+
+      expect(findMpvTrackForPlexSubtitle(selectedSource, nativeTracks, allPlexTracks: plexTracks), isNull);
+      expect(findPlexTrackForMpvSubtitle(nativeTracks.first, plexTracks, allMpvTracks: nativeTracks), isNull);
+
+      final preferredResult = service.selectSubtitleTrack(
+        nativeTracks,
+        const SubtitleTrack(id: 'source:40', codec: 'ass'),
+        null,
+      )!;
+      final serverResult = service.selectSubtitleTrack(nativeTracks, null, null)!;
+
+      expect(preferredResult.priority, TrackSelectionPriority.off);
+      expect(preferredResult.track.id, SubtitleTrack.off.id);
+      expect(serverResult.priority, TrackSelectionPriority.off);
+      expect(serverResult.track.id, SubtitleTrack.off.id);
+    });
+
+    test('ambiguous complete direct catalog falls through to native default', () {
+      final plexTracks = [_plexSub(50, codec: 'ass', selected: true), _plexSub(51, codec: 'ass')];
+      final nativeTracks = [_sub('native-first', codec: 'ass'), _sub('native-default', codec: 'ass', isDefault: true)];
+
+      final result = _svc(
+        info: _info(subs: plexTracks),
+      ).selectSubtitleTrack(nativeTracks, const SubtitleTrack(id: 'source:50', codec: 'ass'), null)!;
+
+      expect(result.priority, TrackSelectionPriority.defaultTrack);
+      expect(result.track.id, 'native-default');
+    });
+
+    test('partial metadata-free direct catalog remains pending', () {
+      final plexTracks = [_plexSub(60, codec: 'ass', selected: true), _plexSub(61, codec: 'ass')];
+      final nativeTracks = [_sub('native-only', codec: 'ass', isDefault: true)];
+      final service = _svc(info: _info(subs: plexTracks));
+
+      expect(
+        service.selectSubtitleTrack(nativeTracks, const SubtitleTrack(id: 'source:60', codec: 'ass'), null),
+        isNull,
+      );
+      expect(service.selectSubtitleTrack(nativeTracks, null, null), isNull);
+    });
+
     test('partial native catalog stays undetermined until the selected Plex track arrives', () {
       final info = _info(
         subs: [

test/startup_bootstrap_test.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 import 'dart:io';
 
+import 'package:drift/drift.dart' show ApplyInterceptor, QueryExecutor, QueryExecutorUser, QueryInterceptor;
 import 'package:drift/native.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
@@ -10,6 +11,35 @@ import 'package:plezy/database/tvos_database_recovery_store.dart';
 import 'package:plezy/main.dart';
 import 'package:plezy/media/ids.dart';
 import 'package:plezy/models/download_models.dart';
+import 'package:plezy/services/base_shared_preferences_service.dart';
+
+import 'test_helpers/prefs.dart';
+
+final class _OpenTrackingInterceptor extends QueryInterceptor {
+  _OpenTrackingInterceptor({this.failure});
+
+  final Object? failure;
+  var ensureOpenCalls = 0;
+  var ensureOpenCompleted = false;
+  var closed = false;
+
+  @override
+  Future<bool> ensureOpen(QueryExecutor executor, QueryExecutorUser user) async {
+    ensureOpenCalls++;
+    final failure = this.failure;
+    if (failure != null) throw failure;
+
+    final result = await executor.ensureOpen(user);
+    ensureOpenCompleted = true;
+    return result;
+  }
+
+  @override
+  Future<void> close(QueryExecutor inner) async {
+    await inner.close();
+    closed = true;
+  }
+}
 
 void main() {
   testWidgets('renders a Flutter frame before starting the initialization gate', (tester) async {
@@ -112,56 +142,118 @@ void main() {
     expect(find.text('ready 9'), findsNothing);
   });
 
-  test('storage-full database open discards native work before retrying', () async {
-    final database = AppDatabase.forTesting(NativeDatabase.memory());
-    addTearDown(database.close);
-    await database.insertDownload(
-      serverId: ServerId('srv'),
-      ratingKey: 'active',
-      globalKey: 'srv:active',
-      type: 'movie',
-      status: DownloadStatus.downloading.index,
-    );
-    await database.updateBgTaskId('srv:active', 'native-task');
-    await database.addToQueue(mediaGlobalKey: 'srv:active');
-    await database.insertDownload(
-      serverId: ServerId('srv'),
-      ratingKey: 'complete',
-      globalKey: 'srv:complete',
-      type: 'movie',
-      status: DownloadStatus.completed.index,
+  test('storage-full lazy database open discards native work before retrying', () async {
+    resetSharedPreferencesForTest();
+    final tempDir = await Directory.systemTemp.createTemp('plezy_startup_storage_full_');
+    final file = File('${tempDir.path}/plezy_downloads.db');
+    final prefs = await BaseSharedPreferencesService.sharedCache();
+    final failedOpen = _OpenTrackingInterceptor(
+      failure: const FileSystemException('write failed: No space left on device'),
     );
+    final successfulOpen = _OpenTrackingInterceptor();
+    AppDatabase? seeded;
+    AppDatabase? resultDatabase;
 
+    try {
+      seeded = AppDatabase.forTesting(NativeDatabase(file));
+      await seeded.insertDownload(
+        serverId: ServerId('srv'),
+        ratingKey: 'active',
+        globalKey: 'srv:active',
+        type: 'movie',
+        status: DownloadStatus.downloading.index,
+      );
+      await seeded.updateBgTaskId('srv:active', 'native-task');
+      await seeded.addToQueue(mediaGlobalKey: 'srv:active');
+      await seeded.insertDownload(
+        serverId: ServerId('srv'),
+        ratingKey: 'complete',
+        globalKey: 'srv:complete',
+        type: 'movie',
+        status: DownloadStatus.completed.index,
+      );
+      await seeded.close();
+      seeded = null;
+
+      var openAttempts = 0;
+      var recoveries = 0;
+      final bootstrap = await openAppDatabaseWithDownloadRecovery(
+        openDatabase: () {
+          return AppDatabase.open(
+            isTvos: false,
+            databaseFile: file,
+            preferences: prefs,
+            executorFactory: (databaseFile) {
+              openAttempts++;
+              final interceptor = openAttempts == 1 ? failedOpen : successfulOpen;
+              return NativeDatabase(databaseFile).interceptWith(interceptor);
+            },
+          );
+        },
+        recoverNativeDownloads: () async {
+          expect(failedOpen.closed, isTrue);
+          recoveries++;
+        },
+        storageFullMessage: 'Storage full',
+      );
+      resultDatabase = bootstrap.database;
+
+      final active = await resultDatabase.getDownloadedMedia('srv:active');
+      final complete = await resultDatabase.getDownloadedMedia('srv:complete');
+      expect(bootstrap.recoveryOutcome, TvosDatabaseRecoveryOutcome.notApplicable);
+      expect(openAttempts, 2);
+      expect(recoveries, 1);
+      expect(failedOpen.ensureOpenCalls, 1);
+      expect(successfulOpen.ensureOpenCalls, greaterThanOrEqualTo(1));
+      expect(successfulOpen.ensureOpenCompleted, isTrue);
+      expect(active?.status, DownloadStatus.failed.index);
+      expect(active?.bgTaskId, isNull);
+      expect(active?.errorMessage, 'Storage full');
+      expect(complete?.status, DownloadStatus.completed.index);
+      expect(await resultDatabase.select(resultDatabase.downloadQueue).get(), isEmpty);
+      expect(await resultDatabase.customSelect('SELECT 1').get(), isNotEmpty);
+    } finally {
+      await resultDatabase?.close();
+      await seeded?.close();
+      await tempDir.delete(recursive: true);
+    }
+  });
+  test('non-storage lazy database-open errors bypass download recovery', () async {
+    resetSharedPreferencesForTest();
+    final tempDir = await Directory.systemTemp.createTemp('plezy_startup_open_error_');
+    final file = File('${tempDir.path}/plezy_downloads.db');
+    final prefs = await BaseSharedPreferencesService.sharedCache();
+    final error = StateError('injected database setup failure');
+    final failedOpen = _OpenTrackingInterceptor(failure: error);
     var openAttempts = 0;
     var recoveries = 0;
-    final bootstrap = AppDatabaseBootstrap(
-      database: database,
-      recoveryOutcome: TvosDatabaseRecoveryOutcome.notApplicable,
-    );
 
-    final result = await openAppDatabaseWithDownloadRecovery(
-      openDatabase: () async {
-        openAttempts++;
-        if (openAttempts == 1) {
-          throw const FileSystemException('write failed: No space left on device');
-        }
-        return bootstrap;
-      },
-      recoverNativeDownloads: () async {
-        recoveries++;
-      },
-      storageFullMessage: 'Storage full',
-    );
+    try {
+      final open = openAppDatabaseWithDownloadRecovery(
+        openDatabase: () {
+          return AppDatabase.open(
+            isTvos: false,
+            databaseFile: file,
+            preferences: prefs,
+            executorFactory: (databaseFile) {
+              openAttempts++;
+              return NativeDatabase(databaseFile).interceptWith(failedOpen);
+            },
+          );
+        },
+        recoverNativeDownloads: () async {
+          recoveries++;
+        },
+        storageFullMessage: 'Storage full',
+      );
 
-    final active = await database.getDownloadedMedia('srv:active');
-    final complete = await database.getDownloadedMedia('srv:complete');
-    expect(result, same(bootstrap));
-    expect(openAttempts, 2);
-    expect(recoveries, 1);
-    expect(active?.status, DownloadStatus.failed.index);
-    expect(active?.bgTaskId, isNull);
-    expect(active?.errorMessage, 'Storage full');
-    expect(complete?.status, DownloadStatus.completed.index);
-    expect(await database.select(database.downloadQueue).get(), isEmpty);
+      await expectLater(open, throwsA(same(error)));
+      expect(failedOpen.ensureOpenCalls, 1);
+      expect(failedOpen.closed, isTrue);
+      expect(openAttempts, 1);
+      expect(recoveries, 0);
+    } finally {
+      await tempDir.delete(recursive: true);
+    }
   });
 }

test/test_helpers/io_fakes.dart

@@ -36,9 +36,17 @@ class FakeHttpClient extends http.BaseClient {
 
   final int statusCode;
   final List<int> body;
+  int closeCount = 0;
+  bool get isClosed => closeCount != 0;
 
   @override
   Future<http.StreamedResponse> send(http.BaseRequest request) async {
     return http.StreamedResponse(Stream<List<int>>.value(body), statusCode, request: request);
   }
+
+  @override
+  void close() {
+    closeCount++;
+    super.close();
+  }
 }

test/test_helpers/watch_together_fakes.dart

@@ -34,6 +34,9 @@ class FakeSyncPlayer implements Player {
   /// When set, the next command throws this and clears the field.
   Object? nextCommandError;
 
+  /// When set, the next command waits for this future and clears the field.
+  Future<void>? nextCommandFuture;
+
   /// Simulates bitstream audio ignoring rate changes: setRate succeeds but
   /// neither state nor the rate stream reflect it.
   bool ignoreRateChanges = false;
@@ -92,6 +95,9 @@ class FakeSyncPlayer implements Player {
   Future<void> play() async {
     commandLog.add('play');
     _maybeThrow();
+    final pending = nextCommandFuture;
+    nextCommandFuture = null;
+    if (pending != null) await pending;
     if (_state.playing) return;
     _state = _state.copyWith(playing: true);
     _playingController.add(true);
@@ -101,6 +107,9 @@ class FakeSyncPlayer implements Player {
   Future<void> pause() async {
     commandLog.add('pause');
     _maybeThrow();
+    final pending = nextCommandFuture;
+    nextCommandFuture = null;
+    if (pending != null) await pending;
     if (!_state.playing) return;
     _state = _state.copyWith(playing: false);
     _playingController.add(false);
@@ -110,6 +119,9 @@ class FakeSyncPlayer implements Player {
   Future<void> seek(Duration position) async {
     commandLog.add('seek:${position.inMilliseconds}');
     _maybeThrow();
+    final pending = nextCommandFuture;
+    nextCommandFuture = null;
+    if (pending != null) await pending;
     _state = _state.copyWith(position: position);
     if (emitRestartOnSeek) _playbackRestartController.add(null);
   }
@@ -118,6 +130,9 @@ class FakeSyncPlayer implements Player {
   Future<void> setRate(double rate) async {
     commandLog.add('rate:$rate');
     _maybeThrow();
+    final pending = nextCommandFuture;
+    nextCommandFuture = null;
+    if (pending != null) await pending;
     if (ignoreRateChanges || _state.rate == rate) return;
     _state = _state.copyWith(rate: rate);
     _rateController.add(rate);

test/watch_together/attached_player_test.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:fake_async/fake_async.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
@@ -131,18 +133,45 @@ void main() {
       });
     });
 
-    test('non-recoverable PlatformException rethrows', () {
+    test('pending teardown NOT_INITIALIZED reports failure and fires onLost once', () {
+      fakeAsync((async) {
+        final (attached, player, lostEvents) = build(async);
+        final playingIntents = <bool>[];
+        attached.playingIntents.listen(playingIntents.add);
+        final pending = Completer<void>();
+        player.nextCommandFuture = pending.future;
+        bool? result;
+
+        attached.play().then((value) => result = value);
+        async.flushMicrotasks();
+        expect(result, isNull);
+
+        pending.completeError(PlatformException(code: 'NOT_INITIALIZED'));
+        async.flushMicrotasks();
+
+        expect(result, isFalse);
+        expect(lostEvents, ['lost']);
+
+        player.emitPlaying(true);
+        async.flushMicrotasks();
+        expect(playingIntents, [true], reason: 'the failed command must remove its outstanding expectation');
+        attached.dispose();
+      });
+    });
+
+    test('SET_PROPERTY_FAILED remains non-recoverable', () {
       fakeAsync((async) {
         final (attached, player, lostEvents) = build(async);
 
-        player.nextCommandError = PlatformException(code: 'SOMETHING_ELSE');
+        player.nextCommandError = PlatformException(code: 'SET_PROPERTY_FAILED');
         Object? error;
-        attached.play().catchError((Object e) {
-          error = e;
+        attached.play().catchError((Object caught) {
+          error = caught;
           return false;
         });
         async.flushMicrotasks();
         expect(error, isA<PlatformException>());
+        expect((error as PlatformException).code, 'SET_PROPERTY_FAILED');
         expect(lostEvents, isEmpty);
         attached.dispose();
       });

test/watch_together/watch_together_overlay_test.dart

@@ -1,4 +1,7 @@
+import 'dart:ui' show SemanticsAction, Tristate;
+
 import 'package:flutter/material.dart';
+import 'package:flutter/semantics.dart' show SemanticsNode;
 import 'package:flutter_test/flutter_test.dart';
 import 'package:plezy/i18n/strings.g.dart';
 import 'package:plezy/watch_together/models/watch_session.dart';
@@ -69,6 +72,48 @@ void main() {
     expect(harness.onLeaveSessionCalls, 1);
     expect(tester.takeException(), isNull);
   });
+
+  testWidgets('session controls announce live state and the copyable room code', (tester) async {
+    final semantics = tester.ensureSemantics();
+    final harness = _OverlayHarness(isHost: false);
+    addTearDown(harness.dispose);
+    await tester.pumpWidget(harness.build());
+
+    var finder = find.bySemanticsLabel(t.watchTogether.openSessionControls);
+    expect(finder, findsOneWidget);
+    var data = tester.getSemantics(finder).getSemanticsData();
+    expect(data.value, '${t.watchTogether.participants}: 1');
+    expect(data.flagsCollection.isButton, isTrue);
+    expect(data.flagsCollection.isEnabled, Tristate.isTrue);
+    expect(data.hasAction(SemanticsAction.tap), isTrue);
+    expect(_semanticTapNodeCount(tester), 1);
+
+    harness.provider.updateStatus(isHost: true, isSyncing: true);
+    await tester.pump();
+
+    finder = find.bySemanticsLabel(t.watchTogether.openSessionControls);
+    data = tester.getSemantics(finder).getSemanticsData();
+    expect(
+      data.value,
+      ['${t.watchTogether.participants}: 1', t.watchTogether.youAreHost, t.watchTogether.syncing].join(', '),
+    );
+
+    await tester.tap(find.byKey(_OverlayHarness.indicatorKey));
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 250));
+
+    final codeFinder = find.bySemanticsLabel(t.watchTogether.copySessionCode);
+    expect(codeFinder, findsOneWidget);
+    data = tester.getSemantics(codeFinder).getSemanticsData();
+    expect(data.value, 'ROOM42');
+    expect(data.flagsCollection.isButton, isTrue);
+    expect(data.flagsCollection.isEnabled, Tristate.isTrue);
+    expect(data.hasAction(SemanticsAction.tap), isTrue);
+    expect(find.bySemanticsLabel('ROOM42'), findsNothing);
+    await tester.pumpWidget(const SizedBox.shrink());
+    await tester.pump();
+    semantics.dispose();
+  });
 }
 
 Future<void> _openLeaveConfirmation(WidgetTester tester, _OverlayHarness harness) async {
@@ -118,7 +163,8 @@ class _OverlayHarness {
 class _FakeWatchTogetherProvider extends WatchTogetherProvider {
   _FakeWatchTogetherProvider({required this.isHostValue, this.leaveError});
 
-  final bool isHostValue;
+  bool isHostValue;
+  bool isSyncingValue = false;
   final Object? leaveError;
   var leaveCalls = 0;
   var _isDisposing = false;
@@ -126,6 +172,9 @@ class _FakeWatchTogetherProvider extends WatchTogetherProvider {
   @override
   bool get isHost => isHostValue;
 
+  @override
+  bool get isSyncing => isSyncingValue;
+
   @override
   String? get sessionId => 'ROOM42';
 
@@ -140,6 +189,12 @@ class _FakeWatchTogetherProvider extends WatchTogetherProvider {
   @override
   int get participantCount => participants.length;
 
+  void updateStatus({required bool isHost, required bool isSyncing}) {
+    isHostValue = isHost;
+    isSyncingValue = isSyncing;
+    notifyListeners();
+  }
+
   @override
   Future<void> leaveSession() async {
     if (!_isDisposing) leaveCalls++;
@@ -153,3 +208,17 @@ class _FakeWatchTogetherProvider extends WatchTogetherProvider {
     super.dispose();
   }
 }
+
+int _semanticTapNodeCount(WidgetTester tester) {
+  var count = 0;
+  void visit(SemanticsNode node) {
+    if (node.getSemanticsData().hasAction(SemanticsAction.tap)) count++;
+    node.visitChildren((child) {
+      visit(child);
+      return true;
+    });
+  }
+
+  visit(tester.binding.renderViews.single.owner!.semanticsOwner!.rootSemanticsNode!);
+  return count;
+}

test/widgets/collapsible_text_test.dart

@@ -1,10 +1,15 @@
+import 'dart:ui' show SemanticsAction, Tristate;
+
 import 'package:flutter/material.dart';
-import 'package:flutter/semantics.dart';
+import 'package:flutter/semantics.dart' show SemanticsNode;
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:plezy/i18n/strings.g.dart';
 import 'package:plezy/widgets/collapsible_text.dart';
 
 void main() {
+  setUpAll(() => LocaleSettings.setLocaleSync(AppLocale.en));
+
   testWidgets('select expands overflowing focused text', (tester) async {
     final focusNode = FocusNode(debugLabel: 'test_collapsible_text');
     addTearDown(focusNode.dispose);
@@ -76,6 +81,53 @@ void main() {
     semantics.dispose();
   });
 
+  testWidgets('overflowing synopsis merges visible text with one expand action', (tester) async {
+    final semantics = tester.ensureSemantics();
+    const text =
+        'This program summary is intentionally long enough to overflow a narrow details sheet and reveal more detail.';
+
+    await tester.pumpWidget(
+      const MaterialApp(
+        home: Scaffold(
+          body: SizedBox(width: 120, child: CollapsibleText(text: text, maxLines: 1)),
+        ),
+      ),
+    );
+
+    final collapsedSynopsis = _visibleSynopsis(tester);
+    expect(collapsedSynopsis, isNotEmpty);
+    expect(collapsedSynopsis, isNot(text));
+
+    var annotation = find.byWidgetPredicate(
+      (widget) => widget is Semantics && widget.properties.label == t.accessibility.expandText,
+    );
+    expect(annotation, findsOneWidget);
+    var node = tester.getSemantics(annotation);
+    var data = node.getSemanticsData();
+    expect(data.label, contains(collapsedSynopsis));
+    expect(data.label, contains(t.accessibility.expandText));
+    expect(data.flagsCollection.isButton, isTrue);
+    expect(data.flagsCollection.isEnabled, Tristate.isTrue);
+    expect(data.hasAction(SemanticsAction.tap), isTrue);
+    expect(_semanticTapNodeCount(tester), 1);
+
+    node.owner!.performAction(node.id, SemanticsAction.tap);
+    await tester.pump();
+
+    expect(_visibleSynopsis(tester), text);
+    annotation = find.byWidgetPredicate(
+      (widget) => widget is Semantics && widget.properties.label == t.accessibility.collapseText,
+    );
+    expect(annotation, findsOneWidget);
+    node = tester.getSemantics(annotation);
+    data = node.getSemanticsData();
+    expect(data.label, contains(text));
+    expect(data.label, contains(t.accessibility.collapseText));
+    expect(data.hasAction(SemanticsAction.tap), isTrue);
+    expect(_semanticTapNodeCount(tester), 1);
+    semantics.dispose();
+  });
+
   testWidgets('reports whether text overflows', (tester) async {
     bool? overflows;
 
@@ -103,3 +155,23 @@ String _collapsiblePlainText(WidgetTester tester) {
   final textFinder = find.byWidgetPredicate((widget) => widget is Text && widget.textSpan != null);
   return tester.widget<Text>(textFinder).textSpan!.toPlainText();
 }
+
+String _visibleSynopsis(WidgetTester tester) {
+  final textFinder = find.byWidgetPredicate((widget) => widget is Text && widget.textSpan != null);
+  final span = tester.widget<Text>(textFinder).textSpan! as TextSpan;
+  return (span.children!.first as TextSpan).text!;
+}
+
+int _semanticTapNodeCount(WidgetTester tester) {
+  var count = 0;
+  void visit(SemanticsNode node) {
+    if (node.getSemanticsData().hasAction(SemanticsAction.tap)) count++;
+    node.visitChildren((child) {
+      visit(child);
+      return true;
+    });
+  }
+
+  visit(tester.binding.renderViews.single.owner!.semanticsOwner!.rootSemanticsNode!);
+  return count;
+}

test/widgets/device_code_dialog_test.dart

@@ -0,0 +1,38 @@
+import 'dart:ui' show SemanticsAction, Tristate;
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:plezy/i18n/strings.g.dart';
+import 'package:plezy/models/trackers/device_code.dart';
+import 'package:plezy/widgets/device_code_dialog.dart';
+
+void main() {
+  setUpAll(() => LocaleSettings.setLocaleSync(AppLocale.en));
+
+  testWidgets('copy control exposes the activation code as its value', (tester) async {
+    final semantics = tester.ensureSemantics();
+    const code = DeviceCode(
+      deviceCode: 'device-token',
+      userCode: 'ABCD-EFGH',
+      verificationUrl: 'https://example.com/activate',
+      expiresIn: 600,
+      interval: 5,
+    );
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: DeviceCodeDialog(code: code, serviceName: 'Example', onCancel: () {}),
+      ),
+    );
+
+    final finder = find.bySemanticsLabel(t.services.deviceCode.copyCode);
+    expect(finder, findsOneWidget);
+    final data = tester.getSemantics(finder).getSemanticsData();
+    expect(data.value, code.userCode);
+    expect(data.flagsCollection.isButton, isTrue);
+    expect(data.flagsCollection.isEnabled, Tristate.isTrue);
+    expect(data.hasAction(SemanticsAction.tap), isTrue);
+    expect(find.bySemanticsLabel(code.userCode), findsNothing);
+    semantics.dispose();
+  });
+}

test/widgets/focusable_popup_menu_button_test.dart

@@ -1,4 +1,7 @@
+import 'dart:ui' show SemanticsAction, Tristate;
+
 import 'package:flutter/material.dart';
+import 'package:flutter/semantics.dart' show SemanticsNode;
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:plezy/theme/mono_theme.dart';
@@ -34,4 +37,46 @@ void main() {
 
     expect(find.text('One'), findsOneWidget);
   });
+
+  testWidgets('forwards a scalar value on one icon-only menu node', (tester) async {
+    final semantics = tester.ensureSemantics();
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: FocusablePopupMenuButton<String>(
+            icon: const Icon(Icons.more_vert),
+            semanticLabel: 'Choose source',
+            semanticValue: 'Trakt',
+            itemBuilder: (_) => const [AppMenuItem(value: 'one', label: 'One')],
+          ),
+        ),
+      ),
+    );
+
+    final finder = find.bySemanticsLabel('Choose source');
+    expect(finder, findsOneWidget);
+    final data = tester.getSemantics(finder).getSemanticsData();
+    expect(data.value, 'Trakt');
+    expect(data.flagsCollection.isButton, isTrue);
+    expect(_semanticTapNodeCount(tester), 1);
+    expect(data.flagsCollection.isEnabled, Tristate.isTrue);
+    expect(data.hasAction(SemanticsAction.tap), isTrue);
+    expect(find.bySemanticsLabel('Trakt'), findsNothing);
+    semantics.dispose();
+  });
+}
+
+int _semanticTapNodeCount(WidgetTester tester) {
+  var count = 0;
+  void visit(SemanticsNode node) {
+    if (node.getSemanticsData().hasAction(SemanticsAction.tap)) count++;
+    node.visitChildren((child) {
+      visit(child);
+      return true;
+    });
+  }
+
+  visit(tester.binding.renderViews.single.owner!.semanticsOwner!.rootSemanticsNode!);
+  return count;
 }

test/widgets/hotkey_recorder_test.dart

@@ -169,6 +169,42 @@ void main() {
     expect(saved.single!.modifiers, [HotKeyModifier.control]);
   });
 
+  testWidgets('record control announces and updates its displayed chord', (tester) async {
+    final semantics = tester.ensureSemantics();
+    const initial = HotKey(key: PhysicalKeyboardKey.keyP, modifiers: [HotKeyModifier.control]);
+    final initialValue = [
+      physicalKeyLabel(PhysicalKeyboardKey.controlLeft),
+      physicalKeyLabel(PhysicalKeyboardKey.keyP),
+    ].join(' + ');
+    expect(formatHotKeyDisplay(initial), initialValue);
+    await _pumpRecorder(tester, saved: <HotKey?>[], currentHotKey: initial);
+
+    Finder annotation(String label) =>
+        find.byWidgetPredicate((widget) => widget is Semantics && widget.properties.label == label);
+
+    var finder = annotation(t.hotkeys.pressToRecord);
+    expect(finder, findsOneWidget);
+    expect(tester.getSemantics(finder).getSemanticsData().value, initialValue);
+
+    await tester.tap(find.byType(HotKeyRecorder));
+    await tester.pump();
+    finder = annotation(t.hotkeys.recordingShortcut);
+    expect(finder, findsOneWidget);
+    expect(tester.getSemantics(finder).getSemanticsData().value, initialValue);
+
+    await tester.sendKeyEvent(LogicalKeyboardKey.keyK, physicalKey: PhysicalKeyboardKey.keyK);
+    await _pumpFocusChange(tester);
+
+    const updated = HotKey(key: PhysicalKeyboardKey.keyK);
+    final updatedValue = physicalKeyLabel(PhysicalKeyboardKey.keyK);
+    expect(formatHotKeyDisplay(updated), updatedValue);
+    finder = annotation(t.hotkeys.pressToRecord);
+    expect(finder, findsOneWidget);
+    expect(tester.getSemantics(finder).getSemanticsData().value, updatedValue);
+    expect(find.bySemanticsLabel(updatedValue), findsNothing);
+    semantics.dispose();
+  });
+
   for (final entry in <(String, LogicalKeyboardKey, PhysicalKeyboardKey)>[
     ('Enter', LogicalKeyboardKey.enter, PhysicalKeyboardKey.enter),
     ('select', LogicalKeyboardKey.select, PhysicalKeyboardKey.select),

test/widgets/music/mini_player_test.dart

@@ -210,6 +210,40 @@ void main() {
     expect(find.byType(IconButton), findsNWidgets(2)); // play/pause + next (mobile layout)
   });
 
+  testWidgets('details control announces the current title and artist exactly once', (tester) async {
+    final semantics = tester.ensureSemantics();
+    final service = _FakeMusicService(track: _track);
+    final observer = MusicUiRouteObserver();
+
+    await tester.pumpWidget(wrap(service: service, observer: observer));
+    await tester.pumpAndSettle();
+
+    var finder = find.bySemanticsLabel('Dawn');
+    expect(finder, findsOneWidget);
+    expect(tester.getSemantics(finder).getSemanticsData().value, 'Test Artist');
+    expect(find.bySemanticsLabel('Test Artist'), findsNothing);
+
+    service.advanceTo(
+      testMediaItem(
+        id: 'track_2',
+        backend: MediaBackend.plex,
+        kind: MediaKind.track,
+        title: 'Noon',
+        grandparentId: 'artist_2',
+        grandparentTitle: 'Second Artist',
+        durationMs: 180000,
+        serverId: 'server_1',
+      ),
+    );
+    await tester.pumpAndSettle();
+
+    finder = find.bySemanticsLabel('Noon');
+    expect(finder, findsOneWidget);
+    expect(tester.getSemantics(finder).getSemanticsData().value, 'Second Artist');
+    expect(find.bySemanticsLabel('Second Artist'), findsNothing);
+    semantics.dispose();
+  });
+
   testWidgets('progress resets immediately when the current track changes', (tester) async {
     final nextTrack = testMediaItem(
       id: 'track_2',

test/widgets/oauth_proxy_dialog_test.dart

@@ -0,0 +1,36 @@
+import 'dart:ui' show SemanticsAction, Tristate;
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:plezy/i18n/strings.g.dart';
+import 'package:plezy/services/trackers/oauth_proxy_client.dart';
+import 'package:plezy/widgets/oauth_proxy_dialog.dart';
+
+void main() {
+  setUpAll(() => LocaleSettings.setLocaleSync(AppLocale.en));
+
+  testWidgets('copy control exposes the OAuth URL as its value', (tester) async {
+    final semantics = tester.ensureSemantics();
+    tester.view.devicePixelRatio = 1;
+    tester.view.physicalSize = const Size(1024, 768);
+    addTearDown(tester.view.resetDevicePixelRatio);
+    addTearDown(tester.view.resetPhysicalSize);
+    const start = OAuthProxyStart(session: 'session-token', url: 'https://example.com/oauth/start', expiresIn: 600);
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: OAuthProxyDialog(start: start, serviceName: 'Example', onCancel: () {}),
+      ),
+    );
+
+    final finder = find.bySemanticsLabel(t.services.oauthProxy.copyUrl);
+    expect(finder, findsOneWidget);
+    final data = tester.getSemantics(finder).getSemanticsData();
+    expect(data.value, start.url);
+    expect(data.flagsCollection.isButton, isTrue);
+    expect(data.flagsCollection.isEnabled, Tristate.isTrue);
+    expect(data.hasAction(SemanticsAction.tap), isTrue);
+    expect(find.bySemanticsLabel(start.url), findsNothing);
+    semantics.dispose();
+  });
+}

test/widgets/track_sheet_test.dart

@@ -8,6 +8,7 @@ import 'package:plezy/i18n/strings.g.dart';
 import 'package:plezy/media/media_source_info.dart';
 import 'package:plezy/mpv/mpv.dart';
 import 'package:plezy/services/playback_subtitle_resolver.dart';
+import 'package:plezy/services/playback_initialization_types.dart';
 import 'package:plezy/theme/mono_tokens.dart';
 import 'package:plezy/widgets/overlay_sheet.dart';
 import 'package:plezy/widgets/video_controls/models/track_controls_state.dart';
@@ -119,7 +120,8 @@ void main() {
       expect(switchedChoice, const PlaybackSourceSubtitleChoice.source(0));
     });
 
-    testWidgets('direct play keeps native tracks and appends unloaded source sidecars', (tester) async {
+    testWidgets('keeps an unloaded source sidecar selectable', (tester) async {
+      const remoteUri = 'https://example.test/source/remote.ass';
       final player = _FakeTrackSheetPlayer(
         tracks: const Tracks(
           subtitle: [SubtitleTrack(id: 's1', language: 'eng', codec: 'srt')],
@@ -146,7 +148,12 @@ void main() {
             ),
           ],
           selectedSubtitleChoice: const PlaybackSourceSubtitleChoice.source(1),
-          sourceSubtitleSidecarIds: const {2},
+          sourceSubtitleSidecars: [
+            PlaybackSubtitleSidecar(
+              sourceStreamId: 2,
+              track: SubtitleTrack.uri(remoteUri, title: 'Remote sidecar', codec: 'ass'),
+            ),
+          ],
           onSwitchSubtitle: (choice) async {
             switchedSourceChoice = choice;
           },
@@ -161,6 +168,100 @@ void main() {
       expect(switchedSourceChoice, const PlaybackSourceSubtitleChoice.source(2));
     });
 
+    testWidgets('does not duplicate a previously attached sidecar after selecting an embedded track', (tester) async {
+      const remoteUri = 'https://example.test/source/attached.ass';
+      final player = _FakeTrackSheetPlayer(
+        tracks: const Tracks(
+          subtitle: [
+            SubtitleTrack(id: 's1', language: 'eng', codec: 'srt'),
+            SubtitleTrack(id: 's2', title: 'Remote sidecar', codec: 'ass', isExternal: true, uri: remoteUri),
+          ],
+        ),
+        track: const TrackSelection(
+          subtitle: SubtitleTrack(id: 's1', language: 'eng', codec: 'srt'),
+        ),
+      );
+
+      await _pumpTrackSheet(
+        tester,
+        player: player,
+        trackControlsState: TrackControlsState(
+          sourceSubtitleTracks: [
+            MediaSubtitleTrack(id: 1, languageCode: 'eng', codec: 'srt', selected: true, forced: false),
+            MediaSubtitleTrack(
+              id: 2,
+              title: 'Remote sidecar',
+              codec: 'ass',
+              external: true,
+              selected: false,
+              forced: false,
+            ),
+          ],
+          selectedSubtitleChoice: const PlaybackSourceSubtitleChoice.source(1),
+          sourceSubtitleSidecars: [
+            PlaybackSubtitleSidecar(
+              sourceStreamId: 2,
+              track: SubtitleTrack.uri(remoteUri, title: 'Remote sidecar', codec: 'ass'),
+            ),
+          ],
+          onSwitchSubtitle: (_) async {},
+          subtitleSearchSupported: false,
+        ),
+      );
+
+      expect(find.text('Remote sidecar'), findsOneWidget);
+    });
+
+    testWidgets('keeps an unloaded source sidecar beside an unrelated downloaded subtitle', (tester) async {
+      const sourceUri = 'https://example.test/source/unloaded.ass';
+      const downloadedUri = 'file:///tmp/downloaded.srt';
+      final player = _FakeTrackSheetPlayer(
+        tracks: const Tracks(
+          subtitle: [
+            SubtitleTrack(id: 's1', title: 'Embedded subtitle', codec: 'srt'),
+            SubtitleTrack(
+              id: 'downloaded',
+              title: 'Downloaded subtitle',
+              codec: 'srt',
+              isExternal: true,
+              uri: downloadedUri,
+            ),
+          ],
+        ),
+        track: const TrackSelection(
+          subtitle: SubtitleTrack(id: 's1', title: 'Embedded subtitle', codec: 'srt'),
+        ),
+      );
+
+      await _pumpTrackSheet(
+        tester,
+        player: player,
+        trackControlsState: TrackControlsState(
+          sourceSubtitleTracks: [
+            MediaSubtitleTrack(
+              id: 2,
+              title: 'Remote sidecar',
+              codec: 'ass',
+              external: true,
+              selected: false,
+              forced: false,
+            ),
+          ],
+          selectedSubtitleChoice: const PlaybackSourceSubtitleChoice.source(1),
+          sourceSubtitleSidecars: [
+            PlaybackSubtitleSidecar(
+              sourceStreamId: 2,
+              track: SubtitleTrack.uri(sourceUri, title: 'Remote sidecar', codec: 'ass'),
+            ),
+          ],
+          onSwitchSubtitle: (_) async {},
+          subtitleSearchSupported: false,
+        ),
+      );
+
+      expect(find.text('Downloaded subtitle'), findsOneWidget);
+      expect(find.text('Remote sidecar'), findsOneWidget);
+    });
     testWidgets('keeps a source sheet open until the async selection commits', (tester) async {
       final player = _FakeTrackSheetPlayer(
         tracks: const Tracks(
@@ -204,7 +305,16 @@ void main() {
                 ),
               ],
               selectedSubtitleChoice: const PlaybackSourceSubtitleChoice.source(1),
-              sourceSubtitleSidecarIds: const {2},
+              sourceSubtitleSidecars: [
+                PlaybackSubtitleSidecar(
+                  sourceStreamId: 2,
+                  track: SubtitleTrack.uri(
+                    'https://example.test/source/pending.ass',
+                    title: 'Remote sidecar',
+                    codec: 'ass',
+                  ),
+                ),
+              ],
               onSwitchSubtitle: (_) => selectionGate.future,
               subtitleSearchSupported: false,
             ),
@@ -262,18 +372,26 @@ void main() {
       expect(switchedSourceChoice, isNull);
     });
 
-    testWidgets('does not append a source sidecar already loaded as the secondary track', (tester) async {
+    testWidgets('does not append source sidecars already loaded as primary and secondary tracks', (tester) async {
+      const primaryUri = 'https://example.test/source/primary.ass';
+      const secondaryUri = 'https://example.test/source/secondary.ass';
       final player = _FakeTrackSheetPlayer(
         supportsSecondarySubtitles: true,
         tracks: const Tracks(
           subtitle: [
-            SubtitleTrack(id: 's1', language: 'eng', codec: 'srt'),
-            SubtitleTrack(id: 's2', title: 'Remote sidecar', codec: 'ass', isExternal: true),
+            SubtitleTrack(id: 's1', title: 'Primary sidecar', codec: 'ass', isExternal: true, uri: primaryUri),
+            SubtitleTrack(id: 's2', title: 'Secondary sidecar', codec: 'ass', isExternal: true, uri: secondaryUri),
           ],
         ),
         track: const TrackSelection(
-          subtitle: SubtitleTrack(id: 's1', language: 'eng', codec: 'srt'),
-          secondarySubtitle: SubtitleTrack(id: 's2', title: 'Remote sidecar', codec: 'ass', isExternal: true),
+          subtitle: SubtitleTrack(id: 's1', title: 'Primary sidecar', codec: 'ass', isExternal: true, uri: primaryUri),
+          secondarySubtitle: SubtitleTrack(
+            id: 's2',
+            title: 'Secondary sidecar',
+            codec: 'ass',
+            isExternal: true,
+            uri: secondaryUri,
+          ),
         ),
       );
 
@@ -282,9 +400,17 @@ void main() {
         player: player,
         trackControlsState: TrackControlsState(
           sourceSubtitleTracks: [
+            MediaSubtitleTrack(
+              id: 1,
+              title: 'Primary sidecar',
+              codec: 'ass',
+              external: true,
+              selected: true,
+              forced: false,
+            ),
             MediaSubtitleTrack(
               id: 2,
-              title: 'Remote sidecar',
+              title: 'Secondary sidecar',
               codec: 'ass',
               external: true,
               selected: false,
@@ -293,13 +419,23 @@ void main() {
           ],
           selectedSubtitleChoice: const PlaybackSourceSubtitleChoice.source(1),
           selectedSecondarySubtitleStreamId: 2,
-          sourceSubtitleSidecarIds: const {2},
+          sourceSubtitleSidecars: [
+            PlaybackSubtitleSidecar(
+              sourceStreamId: 1,
+              track: SubtitleTrack.uri(primaryUri, title: 'Primary sidecar', codec: 'ass'),
+            ),
+            PlaybackSubtitleSidecar(
+              sourceStreamId: 2,
+              track: SubtitleTrack.uri(secondaryUri, title: 'Secondary sidecar', codec: 'ass'),
+            ),
+          ],
           onSwitchSubtitle: (_) async {},
           subtitleSearchSupported: false,
         ),
       );
 
-      expect(find.text('Remote sidecar'), findsOneWidget);
+      expect(find.text('Primary sidecar'), findsOneWidget);
+      expect(find.text('Secondary sidecar'), findsOneWidget);
     });
   });
 
@@ -364,10 +500,13 @@ void main() {
     });
 
     test('counts direct-play source sidecars without replacing native tracks', () {
+      const sourceUri = 'https://example.test/source/available.ass';
       final sourceSidecar = MediaSubtitleTrack(id: 1, external: true, selected: false, forced: false);
       final state = TrackControlsState(
         sourceSubtitleTracks: [sourceSidecar],
-        sourceSubtitleSidecarIds: {sourceSidecar.id},
+        sourceSubtitleSidecars: [
+          PlaybackSubtitleSidecar(sourceStreamId: sourceSidecar.id, track: SubtitleTrack.uri(sourceUri)),
+        ],
         onSwitchSubtitle: (_) async {},
       );
 

test/widgets/video_controls_test.dart

@@ -1099,6 +1099,55 @@ void main() {
       expect(seekEvents, 0);
     });
 
+    testWidgets('focused slider owns one adjustable semantics node', (tester) async {
+      LocaleSettings.setLocaleSync(AppLocale.en);
+      final semantics = tester.ensureSemantics();
+      final focusNode = FocusNode(debugLabel: 'semantic_timeline');
+      addTearDown(focusNode.dispose);
+      final seekEnds = <Duration>[];
+
+      await tester.pumpWidget(
+        MaterialApp(
+          home: Scaffold(
+            body: SizedBox(
+              width: 400,
+              child: TimelineSlider(
+                position: const Duration(minutes: 1),
+                duration: const Duration(minutes: 10),
+                chapters: const [],
+                chaptersLoaded: true,
+                focusNode: focusNode,
+                onSeek: (_) {},
+                onSeekEnd: seekEnds.add,
+              ),
+            ),
+          ),
+        ),
+      );
+      focusNode.requestFocus();
+      await tester.pump();
+
+      final finder = find.bySemanticsLabel(t.videoControls.timelineSlider);
+      expect(finder, findsOneWidget);
+      final node = tester.getSemantics(finder);
+      final data = node.getSemanticsData();
+      expect(data.label, t.videoControls.timelineSlider);
+      expect(data.value, '1:00');
+      expect(data.increasedValue, '1:10');
+      expect(data.decreasedValue, '0:50');
+      expect(data.flagsCollection.isSlider, isTrue);
+      expect(data.flagsCollection.isEnabled, ui.Tristate.isTrue);
+      expect(data.flagsCollection.isButton, isFalse);
+      expect(data.hasAction(ui.SemanticsAction.tap), isFalse);
+      expect(data.hasAction(ui.SemanticsAction.increase), isTrue);
+      expect(data.hasAction(ui.SemanticsAction.decrease), isTrue);
+
+      node.owner!.performAction(node.id, ui.SemanticsAction.increase);
+      node.owner!.performAction(node.id, ui.SemanticsAction.decrease);
+      expect(seekEnds, const [Duration(minutes: 1, seconds: 10), Duration(seconds: 50)]);
+      semantics.dispose();
+    });
+
     testWidgets('does not pass chapters to painter when timeline markers are hidden', (tester) async {
       await tester.pumpWidget(
         MaterialApp(