Hello Mugen,
we use some fx scripts to create our subtitles and now these videos does not display these subtitles correctly, although the subtitles are unchanged. In our git it display correctly.
PJ
Hello.
Can you give us more detail ?
Like an example ASS file (with a video if possible) and a screenshot of what it displays in the player window?
how can i attach something here
All audio songs with special effects having this problem and tested with macos, linux and windows mugen player v8.0.15-next
v8.0.6 everything still works
The fifth button 
somehow i cannot upload greater than 10mbyte although it says 40mb is maximum
I’ll have to check why this is not working as intended.
karaokemugen-2024-07-20.log (1,3 MB)
When we forward the player a bit the subtitles are not working anymore. For example when beastar when i forward 1:24 the subtitles not working anymore
It’s a known bug from mpv, see the issue on KM here.
You can try disabling avatar display for requested songs, as the bug is tied to that. It only happens with audio-only songs, because we’re using complicated lavfi-complex filters to display avatars and/or qr codes on top of the video feed. It behaves differently between audio and video.
See also this mpv issue for details, as it’s linked to that.