Pitch Output 1 Issue

Update to latest OS. All good. Except Pitch from output 1 sounds like it is modulated some how. I am not getting a constant clean voltage. Instead it sounds as though the pitch is fm’d.

If I move my cable from pitch output 1 to pitch output 2 and fire the same notes - all is well! Just a problem on pitch output 1.

This is an issue when internally sequencing or when sending notes via USB.

There are no effects in place and the channels are all set to Mono.

Can anyone else confirm they are having this issue please?

Actually - I think I have solved the issue!

and would you mind sharing how you solved it ?