Paste option disables

I am trying to do a copy and paste. The copy works, but the paste option is disabled. Trying ctrl-V does not work either.

Cubase Elements 11.5.04
Windows 11


Windows 11 is not supported system yet. But I don’t think, this is the case.

What data do you try to Copy & Paste? Could you describe step by step, please?

Could you try in the Cubase Safe Start Mode [Disable preferences], please?