Wrong ASS subs position for Anime in JMP

[jelly jelly]

Hi, please don't laugh if you recognize the media but I noticed that the ASS subtitles for an anime episode in the Windows Jellyfin Media Player are wrongly positioned.

In JMP:



How it's intended and correclty displays in jellyfin web player and potplayer:



What could be the issue here for JMP to display them incorrectly like that?

I'm using JMP 1.9.1 and the only lines that appear in the log when I play the episode are:

Code:

[2024-02-26 16:02:42.851 +07:00] [INF] [47] Jellyfin.Api.Helpers.MediaInfoHelper: User policy for "xxx". EnablePlaybackRemuxing: True EnableVideoPlaybackTranscoding: True EnableAudioPlaybackTranscoding: True

[2024-02-26 16:02:42.856 +07:00] [INF] [47] Jellyfin.Api.Helpers.MediaInfoHelper: StreamBuilder.BuildVideoItem( Profile="Jellyfin Media Player", Path="xxx", AudioStreamIndex=null, SubtitleStreamIndex=null ) => ( PlayMethod=DirectPlay, TranscodeReason=0 ) "media:/videos/dd074308-2c74-437c-7b74-1b91169a80f9/stream.mkv?MediaSourceId=dd0743082c74437c7b741b91169a80f9&Static=true&VideoCodec=hevc&AudioCodec=aac&AudioStreamIndex=1&SubtitleStreamIndex=2&api_key=<token>&SubtitleMethod=Embed&Tag=4898e9c0a1a3924ec4e501c0cb835868"

The file is Direct playing, it's on the same machine. The playback info:

Playback Info
Player:
MPV Video Player
Play method:
Direct playing
Protocol:
http
Stream type:
Video
Original Media Info
Container:
mkv
Size:
530.8 MiB
Bitrate:
4.3 Mbps
Video codec:
HEVC Main 10
Video bitrate:
4.0 Mbps
Video range type:
SDR
Audio codec:
AAC LC
Audio bitrate:
252 kbps
Audio channels:
2
Audio sample rate:
48000 Hz

The subtitles are:

Language eng
Codec ASS
Default Yes
Forced No
External No