Octatrack crossfader unwanted changing of A4 pitch (resolved)

[error.eyes]

Crossfader sending midi CC problem

I’ve had this problem before where the OT sends a midi cc message to a synth when the crossfader is moved. When I had the A4, it turned one of the osc pitches right down or something like that. Now it is causing problems with a Nord Drum 2 where midi notes don’t trigger. maybe turned a parameter down like volume or velocity etc. Anyone else experience a similar problem when hooking something up to the OT? Cheers!