Embedded ASS in MKV with Opening and Ending : Subtitles disable on switching Episode to Opeing/Ending
That issue doesn't reproduce on all mkv with Opening/Ending and ASS subtitles, but at least on the sample below.
It can be reproduce on desktop too.
Sample on quincy :
smb://quincy.local/public/Issue_Sample/Sample_for_VLC/Sample_1/(Hi10)Bakemonogatari-03(BD_720p)_(Coalgirls).mkv