Font littered with white rectangles

Wappler: v4.4.3
OS: MacOS Big Sur
Computer: MacBook Pro 16 inch 2019

When switching between projects, most of the text becomes unreadable with lots of white rectangles all over it. If I switch windows and do things then they fix themselves but it’s quite bizarre and offputting.

Screenshot here:

Screenshot 2021-12-12 at 19.48.15760×458 24.6 KB

I’ve tried to see if this has been reported already but couldn’t find anything.