Can you use a external programme like midi pipe to change the MIDI channel coming out of ‘from Max’ into the CV pal??
that might be good to make sure it worked, and then I am sure someone could help you alter the MIDI channel from MLRV, I use a modded meadowphysics to spit out 4x gates to CVPAL. and I had to do a bit of tweaking to get meadowphysics to send the right notes out on the right channel for CVPAL.