I was playing in the single player in the down town map with all the clickers on survivor mode. I get to the ladder and go to climb up and he flips to the other side of the ladder and Ellie's in front of the ladder and she won't move and I can't move and the last of the clickers would not even come at us. I had to loose all my progress at that point and restart it. Has any one come across this one?? Another glitch to watch out for is at the Dam. At the Dam I started a fist fight with the last gun man next to the door on the landing and I fell to the other side of the door and had to restart the game I could not get out.