It is actually a "trainwreck" sort of bug, because it ruins my game when it happens: the game totally locks up and I have to ctrl+alt+delete, which loses my character/game. I can't tell exactly what the problem is either, I'm not sure if it's the audio that messes up or if the game is just freezing which makes the audio sample keep playing, because there's no error message or anything. It only happens right as I enter a new level, though.
I actually had this same problem a few years ago when I first tried DoomRL which made me give up, heh. =\
Searching through the forum here I saw one or two other people that had the same issue over the last few years, so I suppose it's not exactly a common bug. I could try without music, but to be honest, having the DOOM music makes it about 100x more fun, heh.