So I am getting crazy.
With Cubase up to 11 you just plug the CC121 and voila ! it controls Cubase.
With cubase 12 (M1) nothing ! The blue led continues to blink on the CC121 after I start Cubase.
I can see the CC121 in the midi channels, but in the studio device list nothing.
On the same computer the CC121 workls perfectly on Cubase 11.
Any idea ?