I often get extra notes and sounds with real tracks at the end of tunes, no matter what kind of ending used or self-created. But, not in all cases. I'm using BIAB 2011.5. It generally occurs when I add a real track to an existing style, such as a rhythm guitar, or some other instrument. Muting that part with the F5 key (the measure before the problem occurs) and hitting save usually works. It would be nice to not have to do that.