Live TV subtitles crashing playback, force "Subtitle Mode" for all users or disable entirely?

[liamlows 0]

Hello,

So I recently set up M3U streaming via Threadfin (which filters and maps channels from my IPTV provider) and when I finished setting it all up and started a stream, it would play for a little bit completely fine but eventually error with "No compatible streams are currently available. Please try again later or contact your system administrator for details". I tried to understand what was causing this issue to occur and looked at logs but didn't see anything explicitly explaining the error other than some "resource not found" errors.

I then bumped into this thread and saw something about subtitles potentially causing an issue with streaming (looking back I don't know why I thought this but its irrelevant). I noticed my user settings had subtitle mode set to "Default" and they would always be on when opening a Live TV stream so I instead set it to "No subtitles" and tried accessing one of the streams I had issues with again. Sure enough, after this change the subtitles never loaded and I successfully ran the stream for about 2 hours with no issues at all (previously the compatible streams error would pop up after about 2-5 minutes).

Thus, I have a feeling that somewhere between my IPTV provider -> threadfin -> emby the subtitles sent with the M3U are getting messed up and causing the whole playback to fail. I'd like to fix it properly, but I'm worried it may be a provider issue and not something I can control. Is there a way to disable subtitles globally for all live tv streams to prevent this from happening or by default set the mode to "No Subtitles" for all my users? The subtitles provided are barely correct or are super behind so I dont see any reason to need them anyway. Additionally, my family isn't the best with tech so asking them to change that profile setting on their own may be difficult to do.

Thanks in advance for any help or insight!

EDIT: One of the log errors found, unsure if related. I can post the full embyserver.txt if needed.

2025-06-12 21:51:18.146 Error Server: Error processing request
*** Error Report ***
Version: 4.8.11.0
Command line: /opt/emby-server/system/EmbyServer.dll -programdata /var/lib/emby -ffdetect /opt/emby-server/bin/ffdetect -ffmpeg /opt/emby-server/bin/ffmpeg -ffprobe /opt/emby-server/bin/ffprobe -restartexitcode 3 -updatepackage emby-server-deb_{version}_amd64.deb
Operating system: Linux version 5.15.0-141-generic (buildd@lcy02-amd64-027) (gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #151-Ubun
Framework: .NET 6.0.36
OS/Process: x64/x64
Runtime: opt/emby-server/system/System.Private.CoreLib.dll
Processor count: 12
Data path: /var/lib/emby
Application path: /opt/emby-server/system
MediaBrowser.Common.Extensions.ResourceNotFoundException: MediaBrowser.Common.Extensions.ResourceNotFoundException: Resource not found. Type: Object, Id: 06044cf0e6f93cdae5f285c9ecfaaeb4_01413a525b3a9622ce6fdf19f7dde354_1b2eef8adeca2fa30701a494afdd84b1
at Emby.Server.MediaEncoding.Api.BaseStreamingService.GetState(StreamRequest request, AuthorizationInfo authorizationInfo, String manifestAbsoluteUri, Boolean requiresOutputPath, CancellationToken cancellationToken)
at Emby.Server.MediaEncoding.Api.Hls.DynamicHlsService.Get(GetLiveHlsStream request)
at Emby.Server.Implementations.Services.ServiceController.GetTaskResult(Task task)
at Emby.Server.Implementations.Services.ServiceHandler.ProcessRequestAsync(HttpListenerHost httpHost, IServerApplicationHost appHost, IRequest httpReq, IResponse httpRes, IStreamHelper streamHelper, RestPath restPath, String responseContentType, CancellationToken cancellationToken)
at Emby.Server.Implementations.HttpServer.HttpListenerHost.RequestHandler(IRequest httpReq, ReadOnlyMemory`1 urlString, ReadOnlyMemory`1 localPath, CancellationToken cancellationToken)
Source: Emby.Server.MediaEncoding
TargetSite: Void MoveNext()

 

Edited June 12, 2025 by liamlows
added error

[Luke 42077]

Quote

Is there a way to disable subtitles globally for all live tv streams to prevent this from happening or by default set the mode to "No Subtitles" for all my users?

Hi, the closest you can do is go into each user in user management, and then click the link to edit their profile preferences. From there you can set the subtitle mode to no subtitles. you'll have to do this for each user.

[liamlows 0]

18 hours ago, Luke said:

Hi, the closest you can do is go into each user in user management, and then click the link to edit their profile preferences. From there you can set the subtitle mode to no subtitles. you'll have to do this for each user.

Thanks for that, it's good to know that this is a possibility for others where i can manually change that setting for them. However, unfortunately it looks like the issue still happens even with the subtitles disabled, I'm guessing when it worked fine that one time, I must have just gotten lucky. I tried it again and this time captured the full chunk of logs from the stream starting to it failing, do you see anything out of the ordinary here? Is it just the case that the IPTV provider is responding with an error and causing the stream to fail? 

Attached are the logs from that snippet (let me know if the full file would be better, at the time it was very very long so id try to restart and isolate usage to just the stream).

 

embyserver.txt

[Luke 42077]

1 hour ago, liamlows said:

Thanks for that, it's good to know that this is a possibility for others where i can manually change that setting for them. However, unfortunately it looks like the issue still happens even with the subtitles disabled, I'm guessing when it worked fine that one time, I must have just gotten lucky. I tried it again and this time captured the full chunk of logs from the stream starting to it failing, do you see anything out of the ordinary here? Is it just the case that the IPTV provider is responding with an error and causing the stream to fail? 

Attached are the logs from that snippet (let me know if the full file would be better, at the time it was very very long so id try to restart and isolate usage to just the stream).

 

embyserver.txt 168.53 kB · 0 downloads

Hi, please attach the complete emby server log file and also the ffmpeg log file. thanks.

[liamlows 0]

23 hours ago, Luke said:

Hi, please attach the complete emby server log file and also the ffmpeg log file. thanks.

Hi Luke,

Thanks for the response, attached are several of the ffmpeg logs since several were generated and the full embyserver log. Hope this might help narrow it down. 

ffmpeg-directstream-d42f6c9f-dd57-45be-b25b-55e801ae1c72_1.txt ffmpeg-transcode-030e3261-1d8b-4101-97b0-6ac2d9b5d7eb_1.txt ffmpeg-transcode-85fc505c-2fa2-4df2-95d2-ee3901d6122c_1.txt ffmpeg-transcode-c20085c5-85b9-466f-bb47-a973f9b2dc2f_1.txt ffmpeg-transcode-ef28bdf0-84f5-416c-ac48-3066cb3991a5_1.txt embyserver.txt

[Luke 42077]

On 6/14/2025 at 8:24 PM, liamlows said:

Hi Luke,

Thanks for the response, attached are several of the ffmpeg logs since several were generated and the full embyserver log. Hope this might help narrow it down. 

ffmpeg-directstream-d42f6c9f-dd57-45be-b25b-55e801ae1c72_1.txt 21.42 kB · 0 downloads ffmpeg-transcode-030e3261-1d8b-4101-97b0-6ac2d9b5d7eb_1.txt 39 kB · 0 downloads ffmpeg-transcode-85fc505c-2fa2-4df2-95d2-ee3901d6122c_1.txt 38.84 kB · 0 downloads ffmpeg-transcode-c20085c5-85b9-466f-bb47-a973f9b2dc2f_1.txt 38.32 kB · 0 downloads ffmpeg-transcode-ef28bdf0-84f5-416c-ac48-3066cb3991a5_1.txt 25.4 kB · 0 downloads embyserver.txt 220.79 kB · 0 downloads

OK we are looking into it. Thanks.