UR 22 mkii JUST TODAY isn't recognized in cubase 10 pro mac

I have a macbook pro and an imac, and I regularly move back and forth between them. Unplug the audio interface, unplug the dongle for cubase,
plug em in the other thing, launch cubase, and good.

But today, I can’t get it to recognize. It lights up, changed usb cord, no change.

Reboot, no change.

What do I do?