To clarify: CV tracks 3, 4, and CV are all sending CV params. When you hit the 4th note on track 1 it trigs a CV gate. When you hit a 3rd note on track 2 it sends a CV gate. Confirm?

It MAY be a voice stealing issue, but I’m not sure. Turn off the OSCs (incl sub osc) for the voice tracks that are only sending CV (ie. track 3 and 4).

You won’t be able to play track 3 w/o triggering a gate if you have it setup as I noted above. 1 and 2 should be fine though…