I had the same issue here: Analog Keys CV problems - all keys send same pitch via V/Oct CV channel - #9 by clearcut
I honestly don’t know how it got fixed in the end but it started to work after much messing around with it. A4 CV is just quirky and not very comfortable solution for sequencing. It would be so much easier and better if A4 supported midi sequencing but that is a subject that is not allowed to discuss much here in this forum, posts get moved to offtopic quickly if you start requesting that,
But anyway, just hang in there and try different things (reset project etc) and it should start working at some point.