Installed Cubase 12. Where each audio file stutters

Have a new PC. Bought the UR824 recording pack.
Installed Tools. Installed Cubase 12. Where each audio file stutters. When using Cubase 11 there is no audio stuttering.
Is there something I have to change?

You may want to check into the menu
Studio > Studio Setup in the Audio System section and compare your settings for Cubase 11 and Cubase 12 to ensure they are matching.