When running bsplayer, only bsplayer lets me change the audio stream. As if it was ripped from vobsub and pasted in the bsplayer menu. I forgot to mention that this happens for mkv files. ogm files are fine as far as i can tell. I think it might have something to do with the mkv audio splitter and bsplayer hogging the process.
BSPlayer:
Any other player:
Both vobsubs are the same version.