Audio problem: If it is raining, like in the Halloween event or other random storms in the game's time cycle, the audio can change in structures you're inside. But the rain follows the rules as well, like if you're in a tunnel, the rain doesn't fall inside the tunnel. However, if you get inside a bus that is in that tunnel, suddenly you'll hear the sound of rain hitting the roof of the bus, despite there not being any rain that can hit it.
Continuity mistake: The game has a regular day cycle shifting from night to day and back over a length of time. If you go into some buildings like Quarantine Zones, for example, the Stuffed Turtle mission, the windows on the inside of the building will always show daylight shining through. Even if you go into the Quarantine Zone mission while it's night outside.
Revealing mistake: There is a safe house in The Following DLC map with two kids playing some hand held video games sitting in a room. If you look at them closely, the screens are not on with the devices not even actually powered on with black screens. Despite this the kids rapidly press buttons like they are playing them, and you can hear the sounds of games being played.
Revealing mistake: When you get the random encounter of Richie, he will start speaking. When he's closed to finished, suddenly his mouth will stop moving with his words for most of what he says, but then start again at a few sentences, only to stop again.
