here is the log:
21:31:45.949 [INFO ] [smarthome.event.ItemCommandEvent ] - Item 'music_track' received command 1
21:31:46.148 [DEBUG] [romecast.internal.ChromecastCommander] - Application launched: Application{id: CC1AD845, name: Default Media Receiver, sessionId: c6dd6a7e-8d21-469f-abe8-58f0d4c4b532, statusText: Default Media Receiver, transportId: c6dd6a7e-8d21-469f-abe8-58f0d4c4b532, isIdleScreen: false, launchedFromCloud: false, namespaces: [Namespace{urn:x-cast:com.google.cast.cac}, Namespace{urn:x-cast:com.google.cast.debugoverlay}, Namespace{urn:x-cast:com.google.cast.broadcast}, Namespace{urn:x-cast:com.google.cast.media}]}
21:31:46.649 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS MediaStatus{activeTrackIds: <null>, mediaSessionId: 1, playbackRate: 1, playerState: IDLE, currentItemId: 1, currentTime: 0.000000, customData: <null>, loadingItemId: null, items: <null>, preloadedItemId: null, supportedMediaCommands: 274447, volume: Volume{level: 1.0, muted: false, increment: 0.05, stepInterval: 0.05000000074505806, controlType: null}, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: null}, repeatMode: REPEAT_OFF, idleReason: null}
21:31:47.721 [DEBUG] [covery.ChromecastDiscoveryParticipant] - Chromecast Type: Google Home Mini
21:31:47.729 [DEBUG] [covery.ChromecastDiscoveryParticipant] - Chromecast Found: 192.168.0.20 8009
21:31:47.736 [DEBUG] [covery.ChromecastDiscoveryParticipant] - Chromecast Type: Google Home Mini
21:31:47.873 [DEBUG] [cast.internal.ChromecastEventReceiver] - Received an 'UNKNOWN' event (class=class com.fasterxml.jackson.databind.JsonNode)
21:31:48.531 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS MediaStatus{activeTrackIds: [], mediaSessionId: 1, playbackRate: 1, playerState: PLAYING, currentItemId: 1, currentTime: 1.029845, customData: <null>, loadingItemId: null, items: <null>, preloadedItemId: null, supportedMediaCommands: 274447, volume: Volume{level: 1.0, muted: false, increment: 0.05, stepInterval: 0.05000000074505806, controlType: null}, media: null, repeatMode: REPEAT_OFF, idleReason: null}
21:31:48.546 [INFO ] [smarthome.event.ItemStateChangedEvent] - ChromecastAudioControl_LR changed from PAUSE to PLAY
21:31:49.705 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS MediaStatus{activeTrackIds: [], mediaSessionId: 1, playbackRate: 1, playerState: PLAYING, currentItemId: 1, currentTime: 2.212240, customData: <null>, loadingItemId: null, items: [Item{id: 1, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}}], preloadedItemId: null, supportedMediaCommands: 274447, volume: Volume{level: 1.0, muted: false, increment: 0.05, stepInterval: 0.05000000074505806, controlType: null}, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}, repeatMode: REPEAT_OFF, idleReason: null}
21:32:00.969 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS MediaStatus{activeTrackIds: [], mediaSessionId: 1, playbackRate: 1, playerState: PLAYING, currentItemId: 1, currentTime: 13.492571, customData: <null>, loadingItemId: null, items: [Item{id: 1, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}}], preloadedItemId: null, supportedMediaCommands: 274447, volume: Volume{level: 1.0, muted: false, increment: 0.05, stepInterval: 0.05000000074505806, controlType: null}, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}, repeatMode: REPEAT_OFF, idleReason: null}
21:32:11.132 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS MediaStatus{activeTrackIds: [], mediaSessionId: 1, playbackRate: 1, playerState: PLAYING, currentItemId: 1, currentTime: 23.627793, customData: <null>, loadingItemId: null, items: [Item{id: 1, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}}], preloadedItemId: null, supportedMediaCommands: 274447, volume: Volume{level: 1.0, muted: false, increment: 0.05, stepInterval: 0.05000000074505806, controlType: null}, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}, repeatMode: REPEAT_OFF, idleReason: null}
21:32:18.458 [WARN ] [org.eclipse.jetty.server.HttpChannel ] - /audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff java.io.IOException: java.util.concurrent.TimeoutException: Idle timeout expired: 30000/30000 ms
21:32:21.325 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS MediaStatus{activeTrackIds: [], mediaSessionId: 1, playbackRate: 1, playerState: PLAYING, currentItemId: 1, currentTime: 33.825429, customData: <null>, loadingItemId: null, items: [Item{id: 1, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}}], preloadedItemId: null, supportedMediaCommands: 274447, volume: Volume{level: 1.0, muted: false, increment: 0.05, stepInterval: 0.05000000074505806, controlType: null}, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}, repeatMode: REPEAT_OFF, idleReason: null}
21:32:31.574 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS MediaStatus{activeTrackIds: [], mediaSessionId: 1, playbackRate: 1, playerState: PLAYING, currentItemId: 1, currentTime: 44.076252, customData: <null>, loadingItemId: null, items: [Item{id: 1, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}}], preloadedItemId: null, supportedMediaCommands: 274447, volume: Volume{level: 1.0, muted: false, increment: 0.05, stepInterval: 0.05000000074505806, controlType: null}, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}, repeatMode: REPEAT_OFF, idleReason: null}
21:32:41.755 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS MediaStatus{activeTrackIds: [], mediaSessionId: 1, playbackRate: 1, playerState: PLAYING, currentItemId: 1, currentTime: 54.281348, customData: <null>, loadingItemId: null, items: [Item{id: 1, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}}], preloadedItemId: null, supportedMediaCommands: 274447, volume: Volume{level: 1.0, muted: false, increment: 0.05, stepInterval: 0.05000000074505806, controlType: null}, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}, repeatMode: REPEAT_OFF, idleReason: null}
21:32:51.945 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS MediaStatus{activeTrackIds: [], mediaSessionId: 1, playbackRate: 1, playerState: PLAYING, currentItemId: 1, currentTime: 64.458584, customData: <null>, loadingItemId: null, items: [Item{id: 1, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}}], preloadedItemId: null, supportedMediaCommands: 274447, volume: Volume{level: 1.0, muted: false, increment: 0.05, stepInterval: 0.05000000074505806, controlType: null}, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}, repeatMode: REPEAT_OFF, idleReason: null}
21:33:02.166 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS MediaStatus{activeTrackIds: [], mediaSessionId: 1, playbackRate: 1, playerState: PLAYING, currentItemId: 1, currentTime: 74.695560, customData: <null>, loadingItemId: null, items: [Item{id: 1, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}}], preloadedItemId: null, supportedMediaCommands: 274447, volume: Volume{level: 1.0, muted: false, increment: 0.05, stepInterval: 0.05000000074505806, controlType: null}, media: Media{url: http://192.168.0.10:8080/audio/9c1c4aab-7816-4caf-8de9-0a7deb96beff, contentType: audio/mpeg, duration: 509.884082}, repeatMode: REPEAT_OFF, idleReason: null}
21:33:11.854 [DEBUG] [cast.internal.ChromecastEventReceiver] - Unhandled event type: APPEVENT
21:33:11.866 [DEBUG] [cast.internal.ChromecastEventReceiver] - Unhandled event type: APPEVENT
21:33:11.918 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS MediaStatus{activeTrackIds: <null>, mediaSessionId: 1, playbackRate: 1, playerState: IDLE, currentItemId: 1, currentTime: 0.000000, customData: <null>, loadingItemId: null, items: <null>, preloadedItemId: null, supportedMediaCommands: 274447, volume: Volume{level: 1.0, muted: false, increment: 0.05, stepInterval: 0.05000000074505806, controlType: null}, media: null, repeatMode: null, idleReason: ERROR}
21:33:12.312 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS null
21:33:12.327 [INFO ] [smarthome.event.ItemStateChangedEvent] - ChromecastAudioControl_LR changed from PLAY to PAUSE
21:33:13.016 [DEBUG] [covery.ChromecastDiscoveryParticipant] - Chromecast Type: Google Home Mini
21:33:13.022 [DEBUG] [covery.ChromecastDiscoveryParticipant] - Chromecast Found: 192.168.0.20 8009
21:33:13.030 [DEBUG] [covery.ChromecastDiscoveryParticipant] - Chromecast Type: Google Home Mini
21:33:22.461 [DEBUG] [cast.internal.ChromecastStatusUpdater] - MEDIA_STATUS null