[1.7.0] Playing the wrong audio track when external subtitles are loaded in multi audio mkv.

[gummykage]

Describe the bug
Movie file with:
Video Track
Audio Track
Audio Track - Commentary
SRT Subtitle track
External Subtitle track

When the folder contains the external subtitle track file, the audio tracks are confused, First listed track with name plays the 2nd audio track, the Second listed Audio track plays the first Audio track. As a result the movie plays the commentary even though it displays its playing the default primary audio track.

This problem only appears in the Jellyfin Media Player, when playing through a web browser such as chrome this issue does not happen.

To Reproduce
Steps to reproduce the behavior:
1.) Place movie with video, audio, audio, and embeded subtitle.
2.) Play movie, try audio 1 - works, try commentary audio 2, works properly.
3.) Add External Subtitle to folder,
4.) Refresh all metadata.
5.) Observe the new subtitle track is now loaded.
6.) Select external subtitle track, and primary audio track.

Wrong audio track 2 will play... You can manually swap it, this a cosmetic issue as you can work around by trying the other track. But its annoying because if you select the external subtitle track the wrong audio track may play be default.

Expected behavior
Audio track listed is played properly.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Version [e.g. 22]
• Installation Method [e.g. windows installer]

Additional context
Add any other context about the problem here.

[iwalton3]

I have reproduced this issue and will hotfix asap to get it working again. (This happened because the semantics around subtitles changed in the latest Jellyfin server, to fix strm file support of all things...)

[iwalton3]

Fix is in master, and this will be fixed in the next hotfix.

[iwalton3]

This is fixed in v1.7.1.

[gummykage]

@iwalton3 Wanted to say a huge thank you, I had actually started remuxing some of my movies with ffmpeg and running a nightly build of the server to see if the problem was somewhere else. It was quite irritating. Thank you for pushing this so quickly! I turned to JFmp and promoted it to everyone after realizing some movies just have issues playing in chrome and freeze no matter what i tried. I hope I can contribute to this awesome project in the near future.