The manual describes creation of standard m3u with mp3/wav and etc. With .opus this m3u doesn’t work, so this manual doesn’t solve problem.
I described player behavior in the first and second posts.
If I create m3u with relative path:
player writes message: “Playback failed: File not found” and doesn’t play music.
If I create m3u with with full path:
music is playing, but track isn’t changed in the end, player stops playing after every track in the m3u list and it requires to press “next track” button every time.