Hi Nikon!
Believe it or not … I ran into the same problems trying to hook up my 12 step with Cubase 8. In my case, I see the Midi signals changing the parameters and I also see a signal every time I hit one of the keys, but none of the above settings show any form of activity.
I followed along the detailed description but it does not seem to work in my hands.
12 Step is connected via the Midi expander through a Saffire Pro24 into Cubase 8 Elements. Any ides. Thank in advance … in Deutsch geht natürlich auch 
Cheers!