I have this really weird bug. When I open a random performance file in GS3 and start playing back a random arrangement I get these random instruments leaking into other channels, when not stacked or anything. I mute the channel in GS3 but it still plays the sound in both GS3 and the sequencer. I've changed the program number of the patch it somehow plays, but it still occurs. I've had this bug occuring as well playing back the same wave file but terribly out of phase, while here I also did not use any stacked instruments. Does anybody have this as well?