This happened with xubuntu 23.10 and now with debian 12.5

actually, 2 files: ‘Pulp - Disco 2000 1995.m4a’ and ‘Pulp - Disco 2000 1995.mp4’ inside a directory named Music.

If I move any of the files to another directory, the same happens, vlc will play the track only once.

If, however, I rename any of the 2 tracks, simply changing one character makes the files normal playable again, regardless of where I paste it.

I used yt-dlp to download both the m4a file and the mp4 file and both files do this. I have an ample m4a / mp4 collection and only these 2 files do this.

Why?