Hi,
We had the same issue here.
It seems to be due to the new Ansel RTX feature of Geforce Experience.
We reverted to version 3.15 (Current version is 3.18), and it fixed the problem.
You can download it here: NVIDIA GeForce Experience Download - The easiest way to update your drivers and optimize your games
Hope it helps till Nvidia or Epic Games fix the problem.
Cheers