So I went into Hammer for the first time in a while today, and I noticed something very, very wrong.
Basically, my map is supposed to resemble this:
But it instead looks like this:
It's literally impossible to use the grid, since the brushes either don't show up or are completely distorted. The 3D view box is pretty messed up as well. I've tried looking around on the internet for any possible fixes, but I haven't found anything remotely close to what I'm experiencing.
"Aim towards enemy"-printed on the side of a U.S. Rocket Launcher.