Hi Noel,
great explanation.
I was not aware of the interaction of MIDI assignments of BIAB track with the multichannel imported MIDI file loaded on the Melody track.
Regarding the EDIT windows to manipulate the multichannel MIDI file I have been using it in the last days and to me is not very stable. Maybe it also makes interferences with the ProgramChange assingment by the MID FIlE and the changes made in this windows.

I keep trying with the help of your explanations.
Thanks a lot.

Montxo


BIAB 2023 ULTRAPACK - WIN10
for GIGs: "laptop HP X360 - i7,RAM 16GB " + SSD 500GB for BIAB library