MacOS 11.3.1
MacBook Pro 13 Inch M1 2020
Illustrator 25.4.1

Illustrator opens fine. however, once I open a document or create a new one, any interaction with the artboard causes the art to disappear and be replaced by flashing color blocks, sometimes white, sometimes orange, sometimes blue, and very occasionally I can see a glimpse of the art if I hold the command key.

• Switching off GPU acceleration does not make anything better.
• Uninstalling and reinstalling Illustrator made the problem less profound. The art looks fine until I try to click on anything, then disappears into a field of white, occasionally reappearing, though it remains impossible to enact any edits.
• During this flickering the cursor switches from the direct selection tool to an up and down arrow, and no clicking or interacting seems to do anything.
• The latest Beta (26.0 667) Seems to work fine on my machine, but does not allow me to use crucial third party plugins, so my work cannot be completed.