Using a XBOX controller for windows.
I've started getting sections (and textures) of the map disappearing while playing, I've noticed large sections vanish while you get closer, then reappear at random. In some cases the section will stay visible then you rotate the camera then vanish when you stop rotating the camera. There are too many to list - but they appear to be 'set pieces' such as the top part of the yellow fans, large doorway fans, large floor grills, raised floor pits with ramps and so on. When these vanish they show the floor way beneath that's used as scenery, so going invisible might be a more accurate description.
I've tried verifying files and checking my drivers, unfortunately the problem persists.
Windows 10. 64Bit
32 Gig Ram
Nvidia GTX 1080ti Driver - 441.87 WHQL
i7 6700k CPU