Cubase/You tube

Good afternoon,
When Cubase is active I am unable to use any of the Steinberg tutorials as there is no audio.If I turn off cubase then same you tube clips have audio.
Maybe unrelated but I am unable to record guitar/vocals through UR22c into cubase. I have sound recognised in the DAW but not in cubase.The options for sound input do not have the steinberg option from the DAW.
Any help greatly appreciated from a non techie person
Stay safe .

Cubase is the daw

In Cubase under STUDIO/STUDIO SETUP /AUDIO SYSTEM , you see “release driver when application is in background”. Be sure it’s activated.

Thank you,Draghe
Just an example of my lack of basic tech knowledge,

Thank you,
Will try out your helpful suggestion,