[Xbox] Game crashes when loading sidekick tryouts

[Wisefog]

Hello 

I have just finished all the L.E.A.F missions and I'm trying to finish the zombies equivalent, but whenever I try to start the 'sidekick tryouts' first mission from super brainz, the game hangs during the loading screen. I have tried changing the difficulty, and going with different characters to no avail. It looks like it has something to do with the specific level.