HI Michael

Well I am guessing this will depend on if or not, we are talking about a melody made from a realtrack or a melody based on midi voices.
You could get a problem if the original song called for a midi voice that you don’t have, this would assume either the original was using gm and you are not or visa versa. Or that it required a higher bank voice from a pat file and synth that has more than just GM originally.
I say the above because, if BIAB cant find a midi voice for a track of the same patch details. It will not send anything to that synth on that track /channel. This will result in that track using the last voice sent to that synth on that track channel. Thus as you say stuck on its old voice.
The next time you send it a voice it can manage it changes to, it and comes unstuck!
Hope that is clear, and not too confusing.

Mike


BIAB2021 UltraPlus,AsusN55S1Tbssd, W10/64,Akai EIEpro
Yamaha CVP405,SquireStrat, CoolsoftVMidSynth
Novatation Impulse61 Ctr kbd, Cwalk blab Kontakt

http://mikesmusic.byethost16.com/