Unfortunately I have a problem since a couple of days. To start the quest "Alduin's Wall" I first have to talk to Esbern. The door opens perfectly and the conversation goes fine UNTIL my character says "it's not hopeless, Esbern. I'm Dragonborn". At this point my game either freezes and I have to reset my xbox or my xbox mentions the disc is unreadable, even though there are hardly any scratches on it. I have tried it after the patch, but it still happens. Other games work perfectly.
I hope there's a solution for this, because I'd love to complete the main quest.