Using StudioLogic Mixface with Cubase

Hi and thank you.
OK - I had done steps 1,2 3. and have now done those steps again.

Watching the input SLMIXUSB in Pocket Midi, (all filters cleared) the 16 channel controls plus master vol send midi info.
No other buttons send any data.

I have a keyboard through UR22-II which I can monitor - Midi data looks OK and seen by Cubase
I have a separate USB input device AKAI LPD8 which PocketMidi says Port Open Failed so cant monitor (but works OK into Cubase)
IE Both of the above are inputting OK to Cubase - no midi device is inputting via Mixface at present

What should I see or do in Cubase next to test it. There appears to be no control from Mixface at all.

Thank you for your help…
Colin (LowTech)