Solved
Sims 4 Mac Graphical Glitches - Rainbow Artifacts
Recently, I have been experiencing a graphics issue on my MacBook Pro where the whole screen will flash rainbow colors for a split second once or multiple times in a row. It most commonly happens in ...
- @plasticdoorbell
It's quite common unfortunately with those model Macs. Playing in windowed mode seems to be the only fix. You could try repairing your game, see if that helps.
