I can't get sound to the mixer, but can hear it in my phones

I’m a new user. On Mac OS 11.7.10. I am using the Steinberg UR 22 24bit/192 kHz interface. I can hear the inputs in my head phones, but the sounds don’t show up in the mixer and on the tracks. I’ve configured the input and output busses correctly (I think). I’ve run out of things to try. Can anyone Help, please?

Hi and welcome to the forum,

Make sure Cubase has enabled Mic in the System Preferences, please.
Open macOS System Preferences > Security & Privacy > Privacy > Microphone. Enable Cubase here.

Thank you Martin! I’ll give it a try!

Really appreciate your help.