Trouble after defeating Clyde (South Park: The Stick of Truth)

When I defeat Clyde in his fort, the location becomes as if black, nothing is visible (in the lower right corner is Loading), but actions can be taken (shoot, fart), I walked a little (by touch), found a way out of this location, then everything is visible but the mission was not counted. I return to the location - loading is in progress (with a loading screen) and I can not do anything. I load other saves - everything is the same, only before the fight with Clyde of norms. After the fight, the same. Version 1343.