I have seen this thread on older posts...but the answer is always "this will be patched in our March 2013 update." However, clearly, it's not fixed all the way. I'm on Xbox One and I'm trying to get to the Mountain Village (I think I have a conversation with Roth coming up). As I go up to the pass, the ground disappears...i can see rocks in front of me, but just blue sky at my feet...and if I try to just run across, I fall for forever and have to quit the game.

Anyone still running into this? Any fixes? Here's what I've done so far:
  • Uninstall and reinstall game
  • Fast travel to other locations and come back
  • Hard reboot Xbox and come back in
  • Drink...a LOT!