Rain and Other Textures show in black (to the point of being unplayable)

@EA_Cade, Not disabling overlay option: No difference. Black Texture problem persists.

With it on or off, I have been attempting to make sure and not activate the metric or app overlays.

Other things I tried:

1) Completely reinstalling AMD Radeon software (with downgrade to 19.12.2): No difference with black texture problem.

However: the instability/crashing while starting up seems to have completely cleared up.

FYI the crashes details I was getting was on the startup problem was:
LowLevelFatalError [File:Unknown] [Line: 200] Unreal Engine is exiting due to D3D device being lost.

2) DxDiag showed nothing wrong (attached)

3) Removed and reinstalled the game a second time (first time was through steam, second time was directly through origin): No difference

4) Turned off Freesync: No Difference

5) Temporarily Removed GameUserSetting.ini so that it would re-generate the defaults: No Difference

6) Ran sfc /scannow to make sure system files were good. No problems.

This is a brand new system, brand new installs of OS, drivers and software.

I have absolutely zero problems running ANY other games (Borderlands 3, Assassins Creed: Origins, Dishonored 2, Portal 2) - for the most part running as close to 2k resolution / 120 fps / ultra settings.

Unfortunately, I am at the very end of the limited window for a steam refund on this game, and I feel like I have exhausted my options.

I wanted to list what I have tried and done, and what symptoms I am having in detail on the off chance this may help.

To say I am a little dismayed that I am not getting to enjoy all the awesomeness I have read about this game would be an understatement. I was so looking foward to it. Maybe I'll try again in 6 months. Good luck out there!!!