What is your hardware / operating system. If Windows, you may need to update your graphics driver. If Mac, then if you have upgraded to Big Sur (NOT recommended) that could be the issue...
One of the forum moderators AC 27 USA and earlier • macOS Ventura 13.6.9, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB
Thank you very much for the report and I am very sorry about the issue!
I looked for a similar record, but I was unable to find it. My suggestion is to perform a Preferences Cleaning (https://helpcenter.graphisoft.com/knowledgebase/25464/). This will reset the Work Environment, and hopefully, the issue will go away afterward.
Please let me know if it helps. Thank you very much!