Is there a reason that some songs don't always play with the right instrumentation? There are times where the bass or some other part plays piano. If I stop and re-start the song, it corrects itself. It is like the synth is not resetting. I have also noticed that if I start/stop/restart a song, some lingering notes are heard at the start of the song.

Is there something I can do to eliminate the problem?

Currently, I'm doing the arrangements using VST synths (Forte and VSCDXi) but eventually will use an external synth.

Thanks,
R