Hope this is an easy one as I'm finding it more and more irritating as time goes by....
After upgrading from 2020 to 2021 Autocad LT for Mac I'm finding that every time I delete something I am left with its ghosted image in blue still visible. The only way to remove it is by zooming in/ out or panning. Hopefully in the attached picture you can see the box I have deleted and how the blue outline remains. This blue box will stay there until I change the zoom or pan.
I'm on a fairly new 15" MBP with i9 and 16GB RAM. No issues with AC 2020, this started as soon as I upgraded to 2021.
