UR28M no sound

I installed a UR28M and it worked.
Today however it does not. At first the machine did not reckognise the USB unit, but after a while I got that to work.
It does not map any of the Analog 1 ports. They are all unmapped.
The soundcard seems to work. PC sound is played through the UR28M. But Cubase is playing through soundcard on PC…
any ideas what can be wrong.
Tried uninstall everyething.