diff --git a/mobile/patches/expo-video+2.0.6.patch b/mobile/patches/expo-video+2.0.6.patch
index 2f9338a..9acc6fb 100644
--- a/mobile/patches/expo-video+2.0.6.patch
+++ b/mobile/patches/expo-video+2.0.6.patch
@@ -1,3 +1,40 @@
+diff --git a/node_modules/expo-video/android/src/main/java/expo/modules/video/AudioFocusManager.kt b/node_modules/expo-video/android/src/main/java/expo/modules/video/AudioFocusManager.kt
+index aa911b1..671bf05 100644
+--- a/node_modules/expo-video/android/src/main/java/expo/modules/video/AudioFocusManager.kt
++++ b/node_modules/expo-video/android/src/main/java/expo/modules/video/AudioFocusManager.kt
+@@ -21,7 +21,9 @@ class AudioFocusManager(private val appContext: AppContext) : AudioManager.OnAud
+     }
+   }
+ 
+-  private var players: MutableList<WeakReference<VideoPlayer>> = mutableListOf()
++  // CopyOnWriteArrayList z tego samego powodu co listeners w VideoPlayer: register/unregister
++  // przychodza z watku JS i sprzatajacego, a forEach po liscie idzie na glownym (Goon, GOON-7A).
++  private val players = java.util.concurrent.CopyOnWriteArrayList<WeakReference<VideoPlayer>>()
+   private var currentFocusRequest: AudioFocusRequest? = null
+   private var currentMixingMode: AudioMixingMode = AudioMixingMode.MIX_WITH_OTHERS
+   private val anyPlayerRequiresFocus: Boolean
+@@ -89,8 +91,10 @@ class AudioFocusManager(private val appContext: AppContext) : AudioManager.OnAud
+   }
+ 
+   fun registerPlayer(player: VideoPlayer) {
+-    players.find { it.get() == player } ?: run {
+-      players.add(WeakReference(player))
++    synchronized(players) {
++      players.find { it.get() == player } ?: run {
++        players.add(WeakReference(player))
++      }
+     }
+     player.addListener(this)
+     updateAudioFocus()
+@@ -98,7 +102,7 @@ class AudioFocusManager(private val appContext: AppContext) : AudioManager.OnAud
+ 
+   fun unregisterPlayer(player: VideoPlayer) {
+     player.removeListener(this)
+-    players.removeAll { it.get() == player }
++    players.removeIf { it.get() == player }
+     updateAudioFocus()
+   }
+ 
 diff --git a/node_modules/expo-video/android/src/main/java/expo/modules/video/playbackService/ExpoVideoPlaybackService.kt b/node_modules/expo-video/android/src/main/java/expo/modules/video/playbackService/ExpoVideoPlaybackService.kt
 index cd798cf..8cb6dfb 100644
 --- a/node_modules/expo-video/android/src/main/java/expo/modules/video/playbackService/ExpoVideoPlaybackService.kt
@@ -34,3 +71,40 @@ index cd798cf..8cb6dfb 100644
    }
  
    private fun hidePlayerNotification(player: ExoPlayer) {
+diff --git a/node_modules/expo-video/android/src/main/java/expo/modules/video/player/VideoPlayer.kt b/node_modules/expo-video/android/src/main/java/expo/modules/video/player/VideoPlayer.kt
+index ec7accf..dd365e3 100644
+--- a/node_modules/expo-video/android/src/main/java/expo/modules/video/player/VideoPlayer.kt
++++ b/node_modules/expo-video/android/src/main/java/expo/modules/video/player/VideoPlayer.kt
+@@ -44,7 +44,11 @@ class VideoPlayer(val context: Context, appContext: AppContext, source: VideoSou
+   private var renderersFactory = DefaultRenderersFactory(context)
+     .forceEnableMediaCodecAsynchronousQueueing()
+     .setEnableDecoderFallback(true)
+-  private var listeners: MutableList<WeakReference<VideoPlayerListener>> = mutableListOf()
++  // CopyOnWriteArrayList, nie ArrayList: close() (watek JS albo sprzatajacy obiekty) wypisuje
++  // stad AudioFocusManager, a glowny watek w tym samym czasie rozsyla zdarzenie po prepare()
++  // i iteruje liste -> ConcurrentModificationException (Goon 0.4.2, Sentry GOON-7A, Edge
++  // tworzy i zwalnia odtwarzacze przy kazdym przewinieciu). Iteracja idzie po migawce.
++  private val listeners = java.util.concurrent.CopyOnWriteArrayList<WeakReference<VideoPlayerListener>>()
+   val loadControl: VideoPlayerLoadControl = VideoPlayerLoadControl.Builder().build()
+   val subtitles: VideoPlayerSubtitles = VideoPlayerSubtitles(this)
+   val trackSelector = DefaultTrackSelector(context)
+@@ -320,13 +324,16 @@ class VideoPlayer(val context: Context, appContext: AppContext, source: VideoSou
+   }
+ 
+   fun addListener(videoPlayerListener: VideoPlayerListener) {
+-    if (listeners.all { it.get() != videoPlayerListener }) {
+-      listeners.add(WeakReference(videoPlayerListener))
++    synchronized(listeners) {
++      if (listeners.all { it.get() != videoPlayerListener }) {
++        listeners.add(WeakReference(videoPlayerListener))
++      }
+     }
+   }
+ 
+   fun removeListener(videoPlayerListener: VideoPlayerListener) {
+-    listeners.removeAll { it.get() == videoPlayerListener }
++    // removeIf listy (atomowe), nie kotlinowe removeAll { }, ktore usuwa po indeksach.
++    listeners.removeIf { it.get() == videoPlayerListener }
+   }
+ 
+   private fun sendEvent(event: PlayerEvent) {