Walking Dead season 3 was weird because Clementine went from being a sweet and timid kid to being a shoot first ask question later, fuck everybody kind of person. She's very hostile to the player character in 3. You don't see any transformation as to why her personality changed so much. I kind of get it, she's growing up into a teenager in a post apocalyptic zombie infested world. But then you start the 4th game and she's much closer to who she was in the first 2 games. It's hard to imagine anything she did in the 3rd game as being canon