So uh yeah, a few saves ago i started to notice this happening. I'll post a picture of it... Essentially it looks like there's nodraw brushes at crazy angles all over the place. It mainly happens when i am flying around, but they arent there normally. Its actually somewhat hard to take a picture of because i have to be at just the right position/angle to see them. They flash in and out. It hasnt really affected anything, and doesnt get in the way of me working at all, its mainly a visual annoyance when im zooming around the map. Should i be worried about a pending apocalypse, or is this just a random bug thats fairly common?