Wow.... that's very weird =\ I haven't completed the story mode yet but I'll be careful about this. Try finishing chapter 2 and then reload chapter 1 again. see if it happens again
Most people think that what all I care about in life is collecting trophies. No, I'm a gamer. I play for fun. Trophies are the awards you get from completing a game and nothing more. And I have been completing games 100% since the day i was born.
I'm a gamer, like you.