A small visual bug that seemed to pop up in Illustrator 2020 after using the brush tool. There will be a circle that will appear on the artboard at random places depending on where you are zooming or panning around with the spacebar. You can quickly get rid of it by hitting "Ctrl"
Microsoft Surface Laptop 2
UHD Graphics 620
Thanks for posting this thread.
We are unable to reproduce this issue at our side. Can you please mail to firstname.lastname@example.org with details of the OS & a small video of the issue, so that we can get the root cause of it?
With Best Regards,