Hey this is the german cubase forum you might get better help in the english subforum.
I have the same control too and lots of problems with automation… For some kind of reason Cubase detects my Nano but reacts kind of wierd.
The automation goes up to the middle value in a normal way, up from the middle of its range (lets say value #65) it jumps immediately to the end. Another problem is that I can’t tweak it back, there it jumps also immiedately to value 0. So frustraitng do you encounter also problems with nano and cubase?