So many problems.
It gets even worse with Cubase 9. Novation’s documentation is weak and Cubase isn’t particularly well adapted to Novation. I’ve had a few challenges with it, but it seems to mostly work eventually.
Does Cubase 8 and Novation Impulse work together? Does Cubase 8 and Novation Impulse work together? - Steinberg Lounge - Steinberg Forums
Cubase and a Novation SL MK2 Cubase and a Novation SL MK2 - Cubase - Steinberg Forums
Getting Novation transport controls to work Getting Novation transport controls to work - Cubase - Steinberg Forums
Despite all this, I would still recommend Novation Looking for MIDI controller keyboard recommendations - Steinberg Lounge - Steinberg Forums