I update iOS to 64bit for last month and I still can use URRT2 to record in garage band . But today it was disappears in the garage band , then u reboot my Mac and I the system I can see URRT2 , but I open the garage band it disappears again, that’s mean I can’t record it may I know is it need to wait the firmware update?
I bought UR22CC ant it worked fine out of the box with my Macbook with MacOS 10.15 Catalina.
Then I installed the drivers (said to be compatible with Catalina) and updated the firmware – and it stopped working…
So the problem seems to be bad software.