Hi all, Solidworks 2021on a Dell Precision 3541 running windows 10. When I have a drawing sheet open with an assembly drawing view, I hover over a part in an assembly view it won't select the part. It shows the sheet icon instead of the text telling me what part it is. I can't get a balloon to attach to it either.  I can select some of the parts in the assembly view but not others.  Any ideas why this is happening and what I can do to fix it?

I've attached an image.

Thank you