Cubase AI cannot open Yamaha Steinberg USB ASIO

I am a complete beginner… and do not know how to solve this. So any help is more than welcome!

I have a digital piano(Kawai) for which I bought the Ravencroft 275 VST in order to improve the sound of the piano. The manufacturer suggested to use a sequencer to get better sound. Besides I have the Steinberg UR22 mkII. I installed Cubase AI 9. Cubase recognizes the UVI Workstation (which handles the Ravenscroft) as a VST plugin. But when I try to set up audio I cannot choose the Steinberg for audio in and out. Nor can I change the generic ASIO to the Steinberg ASIO.

As I said I am a complete beginner so if someone would be so kind to help.

Hi and welcome,

Make sure you have the latest UR22 mkII driver installed, please.

What happens, when you select the Yamaha Steinberg USB ASIO driver fro the Devices > Device Setup > VST Audio System? Any message?