Glitches in Illustrator 2020
Hi.
I was working on a file in Illustrator with 1 artboard and about 25 rectangles where I was creating templates.
Suddenly I began to see these glitches and illustrator started lagging.
I don't understand why this app has a lot of issues.
PS: I have a lot of space in my C drive (25gb) and D drive (40 something)
I previously had issues with illustrator before and have already reset my preferences.
I wasn't running a large number of illustrator files at a time
I'm including a picture. Even if you don't have the solution if you know what these glitches are or what causes them kindly let me know.
Thank you.

