keeps crashing

It keeps crashing in the same place during the Fiendryre Frenzy. Its the after the second cutscnene when Harry and Hermione are getting the diadem. It doesnt matter how long it took to get there or what youre doing during that scene. It always freezes and then crashes a couple of seconds into that scene. Ive had a bit of lag-time with previous episodes, but this is the only one that has consistently crashed. Please fix this.

Dimmykins about LEGO Harry Potter: Years 5-7