Right jog wheel display doesn't show cover or logo anymore

Hello together,

after the update to engine os 1.6 everything worked fine. But after playing some tracks, the right jog wheel did show the cd-cover like a crashed image and only black and white. Since then, the display from the right jog wheel keeps on showing the pattern which is shown when the prime 2 is powered on. No art work or anything else.

What I’ve already tried: Installing the update again from my MacBook 2017, Installing the update again with USB stick, Shut down the device and power on again several times, Transferring a custom logo - only left jog wheel showed it.

It is still showing the round circle pattern which is shown when the device is powered on and starting up. Most in white, sometimes it stays blue.

Has anybody an idea what’s broken or how I can fix this? Is there a possibility to do a complete factory reset like with a smartphone or tablet?