Display Issues

[XNINEZERO]

Describe the bug

2 major issues:

1. The game will not launch with the "Fullscreen mode" box checked, or enabled via config.ini. I am on a LG OLED 4K 120 Hz display. When launching the game, the screen goes black and I am met with an "Invalid Format" screen, requiring a hard restart. Launching the game in "windowed mode" does work, but it is not borderless and I can see the top and bottom of the desktop. Attempted on 3 different resolutions (4K, 1440p, 1080p) - all the same result.

2. When loading into the game (in windowed), there is a ton of flashing behind the Main Menu panel - almost like the game is attempting to render in the game world at the title screen.

Environment and game (please complete the following information):
Latest Build.

9900K/3080 Ti/32GB DDR4/SSD.