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

<r>Hello,<br/>
<br/>
yersterday I imported the furniture librarys from this site: <URL url="http://www.sweethome3d.com/blog/2020/12/19/furniture_libraries_1_8.html"><LINK_TEXT text="http://www.sweethome3d.com/blog/2020/12 ... s_1_8.html">http://www.sweethome3d.com/blog/2020/12/19/furniture_libraries ...