Viewport Flickering in Fullscreen with Second Window Opened

Development Programming & Scripting
1

I’ve been getting these weird visual glitches when I go in Fullscreen with a second window opened (Material, Blueprint, debug tool, whatever). They vanish the moment I minimize the second window.

Anyone has a clue?

Thanks!

Engine version: 5.4.3
GPU: rtx 4090 24gb vram
nvidia driver: studio 560.70