Bug ? properties panel not displaying information

Sometime in recent updates, the properties panel has inconsistently stopped displaying information. Sometimes it works, sometimes not.
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Any chance this is an Appearance color thing?
If you switch back to Default colors does it seem to work agian?

Hi John - doesn’t seem to be an appearance thing, and I can’t get it to replicate again. I have been thinking it might’ve been happening when I open a non-3dm file from Explorer into a Rhino session, but multiple attempts to repeat/cause the problem haven’t been successful. I will pay attention if it does and reply back into this thread. thanks!

Michael