glitch: playlist jumping.
 

more of a glitch than a bug.

if you start playing a mp3[might work for any music type though] in your playlist and then subsiquently delete the mp3 from your playlist, allthough with it still playing.
then re-add it to the playlist so that it sits on the end of the playlist. then open up the 'view file info' id3 tag editor for said file. make some changes and save. instead of the music dimming down as the changes are made, and them resuming. a brand new track will be played instead.

i realise that this is kinda long winded, but hey, im only trying to help :)