Not Square-Enix support here, but if the crashing only started within the past month, there is a known issue where the August drivers for Nvidia can get into a bad (i.e., crashing) state if you have multiple overlays running. So I'd be curious what happens if you either disable the Xbox overlay and/or quit GeForce Experience, or downgrade to the July Nvidia drivers.

I honestly don't think it's the cause of your problem—people having issues with corrupted textures and whatnot pre-date the August drivers—but there's an outside chance it could be.