Thank you very much for your reply. With driver version 22.5.1 everything works perfect again.
I have send a message to AMD with their bug report tool. I hope it will help soving the problem.

I made a screenshot, so you can see how it looks:

https://postimg.cc/xXw646Hr

Hello,

yersterday I imported the furniture librarys from this site: http://www.sweethome3d.com/blog/2020/12/19/furniture_libraries_1_8.html. Now all my furniture is shown as black triangle in 3D view. Even the standard furniture is broken now.
I tried to solve the problem by reinstalling but the ...