Unable to play mkv videos with ASS subtitles (An error occurred while attempting to play this video)

[soulvoid86]

@boblinthewild pointed out to me that this issue was already reported. Here’s my post with all logs.

Subtitles on Nvidia Shield stopped working

There are two other reports of this problem: https://forums.plex.tv/t/unable-to-play-mkv-videos-with-ass-subtitles-an-error-occurred-while-attempting-to-play-this-video/ https://forums.plex.tv/t/android-tv-version-8-24-0-breaks-ass-subtitle-and-truehd-transcoding/