We have seen a lot of wierd graphics things here as people upgrade Windows 7 to Windows 10. Always need to install the latest drivers for evrything including the graphics to fix.
Yes, I posted something about these awhile back. They fixed it though. I'm thinking you must be on ST8?
I guess I've just seen it less because I started doing things different to avoid it. With me, it usually would happen after I double clicked a dimension. So I changed the way I did things to avoid it.
The same thing happens to me on every hole table where I have moved the label for the origin (every drawing set uses hole tables). I wish could set that up to never appear in the first place.