This bug happened when I was quick-loading in the slippery floor section of “We’ve Got Hostiles.” On one quick-load, some of the items had a purple texture, and on the next one, they had a silver chrome texture. I’m not sure if this has anything to do with add-ons that were loading in the background, but I wanted to call attention to it anyway.
If you made any changes to texture, levels or models (ie mods) you could have messed it up. Does it still occur from a clean start of the level?
It’s a cubemapping issue - notice how the checkerboard represents the reflections.
This could only happen if the map has been modified or the engine ran into some kind of error when reloading the materials. Is the map stock?