fix: preserve start position and subtitles in ExoPlayer→MPV fallback

android/app/src/main/kotlin/com/edde746/plezy/exoplayer/ExoPlayerCore.kt

@@ -143,6 +143,8 @@ class ExoPlayerCore(private val activity: Activity) : Player.Listener {
 
     // Track state for event emission
     private var lastPosition: Long = 0
+    /** Position to use for fallback: max of current position and pending start position. */
+    private val effectivePosition: Long get() = maxOf(lastPosition, pendingStartPositionMs)
     private var lastDuration: Long = 0
     private var lastBufferedPosition: Long = 0
     private var positionUpdateRunnable: Runnable? = null
@@ -645,7 +647,7 @@ class ExoPlayerCore(private val activity: Activity) : Player.Listener {
             delegate?.onFormatUnsupported(
                 uri = currentMediaUri!!,
                 headers = currentHeaders,
-                positionMs = lastPosition,
+                positionMs = effectivePosition,
                 errorMessage = "Video track present but no decoder available"
             )
             return
@@ -671,7 +673,7 @@ class ExoPlayerCore(private val activity: Activity) : Player.Listener {
             val handled = delegate?.onFormatUnsupported(
                 uri = currentMediaUri!!,
                 headers = currentHeaders,
-                positionMs = lastPosition,
+                positionMs = effectivePosition,
                 errorMessage = error.message ?: "Unknown error"
             ) ?: false
 
@@ -1069,7 +1071,7 @@ class ExoPlayerCore(private val activity: Activity) : Player.Listener {
                 delegate?.onFormatUnsupported(
                     uri = uri,
                     headers = currentHeaders,
-                    positionMs = lastPosition,
+                    positionMs = effectivePosition,
                     errorMessage = "Decoder hang: $decoderName accepted input but produced no output"
                 )
             }

android/app/src/main/kotlin/com/edde746/plezy/exoplayer/ExoPlayerPlugin.kt

@@ -211,8 +211,11 @@ class ExoPlayerPlugin : FlutterPlugin, MethodChannel.MethodCallHandler,
             return
         }
 
-        // New media = fresh slate for pending MPV properties
+        // Only clear pending MPV properties when MPV is the active backend.
+        // When ExoPlayer is active, keep them for potential ExoPlayer→MPV fallback.
+        if (usingMpvFallback) {
             pendingMpvProperties.clear()
+        }
 
         activity?.runOnUiThread {
             if (usingMpvFallback) {

lib/mpv/player/player.dart

@@ -162,6 +162,16 @@ abstract class Player {
   /// [args] - Command and arguments as a list of strings.
   Future<void> command(List<String> args);
 
+  // ============================================
+  // Subtitle Fonts
+  // ============================================
+
+  /// Configure subtitle fonts for libass rendering.
+  ///
+  /// Extracts a comprehensive Unicode font (Go Noto) to the cache directory
+  /// and sets `sub-fonts-dir` and `sub-font` properties.
+  Future<void> configureSubtitleFonts();
+
   // ============================================
   // Passthrough Mode (Audio)
   // ============================================

lib/mpv/player/player_base.dart

@@ -5,6 +5,7 @@ import 'package:flutter/foundation.dart' show protected;
 import 'package:flutter/services.dart';
 
 import '../../utils/app_logger.dart';
+import '../font_loader.dart';
 import '../models.dart';
 import 'player.dart';
 import 'player_state.dart';
@@ -550,6 +551,28 @@ abstract class PlayerBase with PlayerStreamControllersMixin implements Player {
   // ignore: no-empty-block - base no-op, overridden by platform subclasses
   Future<void> setLogLevel(String level) async {}
 
+  // ============================================
+  // Subtitle Fonts
+  // ============================================
+
+  @override
+  Future<void> configureSubtitleFonts() async {
+    try {
+      final fontDir = await SubtitleFontLoader.loadSubtitleFont();
+      if (fontDir != null) {
+        await setProperty('sub-fonts-dir', fontDir);
+        await setProperty('sub-font', SubtitleFontLoader.fontName);
+      }
+    } catch (e) {
+      // Font configuration is not critical - continue without it
+      logController.add(PlayerLog(
+        prefix: 'fonts',
+        level: PlayerLogLevel.warn,
+        text: 'Failed to configure subtitle fonts: $e',
+      ));
+    }
+  }
+
   // ============================================
   // Lifecycle
   // ============================================

lib/mpv/player/player_native.dart

@@ -2,7 +2,6 @@ import 'dart:io' show Platform;
 
 import 'package:flutter/services.dart';
 
-import '../font_loader.dart';
 import '../models.dart';
 import '../../utils/app_logger.dart';
 import 'player_base.dart';
@@ -55,9 +54,6 @@ class PlayerNative extends PlayerBase {
         throw Exception('Failed to initialize player');
       }
 
-      // Configure subtitle fonts for libass support
-      await _configureSubtitleFonts();
-
       // Subscribe to MPV properties
       await observeProperty('time-pos', 'double');
       await observeProperty('duration', 'double');
@@ -80,24 +76,6 @@ class PlayerNative extends PlayerBase {
     }
   }
 
-  /// Configures subtitle fonts for libass support.
-  /// Provides a comprehensive Unicode font (Go Noto) with CJK coverage to ensure
-  /// proper rendering of non-Latin characters in subtitles.
-  Future<void> _configureSubtitleFonts() async {
-    try {
-      final fontDir = await SubtitleFontLoader.loadSubtitleFont();
-      if (fontDir != null) {
-        // Configure MPV to use the extracted font for libass
-        await setProperty('config', 'yes');
-        await setProperty('sub-fonts-dir', fontDir);
-        await setProperty('sub-font', SubtitleFontLoader.fontName);
-      }
-    } catch (e) {
-      // Font configuration is not critical - continue without it
-      errorController.add('Failed to configure subtitle fonts: $e');
-    }
-  }
-
   // ============================================
   // Playback Control
   // ============================================

lib/screens/video_player_screen.dart

@@ -413,6 +413,7 @@ class VideoPlayerScreenState extends State<VideoPlayerScreen> with WidgetsBindin
       // Create player (on Android, uses ExoPlayer by default, MPV as fallback)
       player = Player(useExoPlayer: useExoPlayer);
 
+      await player!.configureSubtitleFonts();
       await player!.setProperty('sub-ass', 'yes'); // Enable libass
       if (Platform.isAndroid && useExoPlayer) {
         final tunneledPlayback = settingsService.getTunneledPlayback();