for the last month now ive had issues with the latest update. Im getting display artifacts and flickering. I reinstalled 4.19 today and its causing the same issue. It only does it to my HDR display and when i mouse over anything in the editor that has a mouse over effect. I have hdr disabled through windows and my display nothing seems to fix it.
I found out the issue, nvidia drivers 411.70 on HDR Displays it causes the flickering issue. turning on HDR and WCG through the windows display settings or reverting the Driver version back.