The screen freezes for a second, then it fails with a screen saying that a unrecoverable system crash occurred and prompts to go back to the display manager as shown below

https://preview.redd.it/f3tryopor3261.jpg?width=1080&crop=smart&auto=webp&s=03074075845d1a4e7300ef8a88e688eed67df889

Possible to do with menu transparency being on, but can't say for 100%, I can't reproduce under debian with same setup so must be openSUSE related.

Steps to reproduce: Select Granite widgets, then select another widget

Suggestions?