MKV Flac embedded subs

[TheDreadPirate]

Hmmmm. I have some experimental media with AV1+FLAC (48Khz), full media info list below. Works fine in Jellyfin Media Player.

Code:

Princess Mononoke
Container: mkv
Path: /media/storage2/testMovies/Princess Mononoke/Princess Mononoke.mkv
Size: 7694 MB

Audio
Title: Surround 5.1 - English - FLAC - Default
Language: eng
Codec: FLAC
AVC: No
Layout: 5.1
Channels: 6 ch
Bitrate: 3981 kbps
Sample rate: 48000 Hz
Bit depth: 24 bit
Default: Yes
Forced: No
External: No

Subtitle
Title: English - Default - PGSSUB
Language: eng
Codec: PGSSUB
AVC: No
Resolution: 1920x1080
Default: Yes
Forced: No
External: No

Video
Title: 1080p AV1 SDR
Codec: AV1
AVC: No
Profile: Main
Level: 8
Resolution: 1920x1080
Aspect ratio: 16:9
Anamorphic: No
Interlaced: No
Framerate: 23.976025
Bitrate: 8021 kbps
Bit depth: 8 bit
Video range: SDR
Video range type: SDR
Pixel format: yuv420p
Ref frames: 1

Audio
Title: Surround 5.1 - English - VORBIS
Language: eng
Codec: VORBIS
AVC: No
Layout: 5.1
Channels: 6 ch
Bitrate: 1509 kbps
Sample rate: 48000 Hz
Default: No
Forced: No
External: No

Audio
Title: Surround 5.1 - Japanese - FLAC
Language: jpn
Codec: FLAC
AVC: No
Layout: 5.1
Channels: 6 ch
Bitrate: 3985 kbps
Sample rate: 48000 Hz
Bit depth: 24 bit
Default: No
Forced: No
External: No

Audio
Title: Surround 5.1 - Japanese - VORBIS
Language: jpn
Codec: VORBIS
AVC: No
Layout: 5.1
Channels: 6 ch
Bitrate: 1509 kbps
Sample rate: 48000 Hz
Default: No
Forced: No
External: No

Subtitle
Title: English - PGSSUB
Language: eng
Codec: PGSSUB
AVC: No
Resolution: 1920x1080
Default: No
Forced: No
External: No

Subtitle
Title: French - PGSSUB
Language: fra
Codec: PGSSUB
AVC: No
Resolution: 1920x1080
Default: No
Forced: No
External: No

Jellyfin Media Player produces logs. Replicate the problem and then post your JMP logs to pastebin. C:\Users\yourUser\appdata\local\jellyfinmediaplayer