Websocket unhandeled exception

[washedup]

My unRAID setup is for testing only and doesn't have much going on.  Just a single SATA SSD to write docker data to, so I don't have many of those options and can't comment if they are "right" or not.

For testing, are you able to create a "Share" that is "simple"?  No movers, no caching, just a simple storage pool for docker to write data to?  Preferably not ZFS or BTRFS.

So after a few days it has crashed again. I did manage to grab the logs from right before it crashed, although it didn't really provide me with much context.
I could be wrong but it seems like the SessionWebSocketListener is sending a keepalive tick to the nonexistent closed websocket for some reason? Could be that for some weird reason RemoveWebSocket isn't called on the closed socket?

Code:

[2024-12-17 05:14:51.923 -08:00] [INF] [78] Emby.Server.Implementations.HttpServer.WebSocketManager: WS " 90.8.xxx.xx" request
[2024-12-17 05:15:16.914 -08:00] [INF] [42] Jellyfin.Server.Implementations.Trickplay.TrickplayManager: Finished creation of trickplay files for "/data/tvshows/Man with a Plan/Season 3/Man with a Plan - S03E03 - Put Him on the Ground WEBDL-1080p.mkv"
[2024-12-17 05:15:16.927 -08:00] [INF] [42] Jellyfin.Server.Implementations.Trickplay.TrickplayManager: Creating trickplay files at 320 width, for "/data/tvshows/Man with a Plan/Season 1/Man with a Plan - S01E02 - Two Tickets to Paradise WEBDL-1080p Proper.mkv" [ID: 1a764916-f3e4-1a45-7015-48880f0a0e4d]
[2024-12-17 05:15:16.927 -08:00] [INF] [42] MediaBrowser.MediaEncoding.Encoder.MediaEncoder: Trickplay generation: "/usr/lib/jellyfin-ffmpeg/ffmpeg -loglevel error -threads 1 -i file:\"/data/tvshows/Man with a Plan/Season 1/Man with a Plan - S01E02 - Two Tickets to Paradise WEBDL-1080p Proper.mkv\" -an -sn -vf \"fps=0.10000000149011612,setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709,scale=trunc(min(max(iw\,ih*(a*sar))\,320)/2)*2:trunc(ow/(a*sar)/2)*2,format=yuv420p\" -threads 1 -c:v mjpeg -qscale:v 4 -fps_mode passthrough -f image2 \"/tmp/jellyfin/0cccf0571a6e4b6da4c8499ff232f7eb/%08d.jpg\""
[2024-12-17 05:15:43.168 -08:00] [INF] [42] Emby.Server.Implementations.Session.SessionWebSocketListener: Sending ForceKeepAlive message to 1 inactive WebSockets.
[2024-12-17 05:15:55.168 -08:00] [INF] [21] Emby.Server.Implementations.Session.SessionWebSocketListener: Lost 1 WebSockets.
[2024-12-17 05:16:26.754 -08:00] [WRN] [18] Emby.Server.Implementations.HttpServer.WebSocketConnection: WS "90.8.xxx.xx" error receiving data: "The remote party closed the WebSocket connection without completing the close handshake."
[2024-12-17 05:16:26.757 -08:00] [INF] [18] Emby.Server.Implementations.HttpServer.WebSocketManager: WS " 90.8.xxx.xx" closed
[2024-12-17 05:16:26.770 -08:00] [FTL] [21] Main: Unhandled Exception
System.OperationCanceledException: The operation was canceled.
---> System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'System.Net.WebSockets.WebSocket'.
  at System.Net.WebSockets.ManagedWebSocket.WriteFrameToSendBuffer(MessageOpcode opcode, Boolean endOfMessage, Boolean disableCompression, ReadOnlySpan`1 payloadBuffer)
  at System.Net.WebSockets.ManagedWebSocket.SendFrameFallbackAsync(MessageOpcode opcode, Boolean endOfMessage, Boolean disableCompression, ReadOnlyMemory`1 payloadBuffer, Task lockTask, CancellationToken cancellationToken)
  --- End of inner exception stack trace ---
  at System.Net.WebSockets.ManagedWebSocket.SendFrameFallbackAsync(MessageOpcode opcode, Boolean endOfMessage, Boolean disableCompression, ReadOnlyMemory`1 payloadBuffer, Task lockTask, CancellationToken cancellationToken)
  at Emby.Server.Implementations.Session.SessionWebSocketListener.KeepAliveSockets(Object o, EventArgs e)
  at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_1(Object state)
  at System.Threading.QueueUserWorkItemCallback.Execute()
  at System.Threading.ThreadPoolWorkQueue.Dispatch()
  at System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart()