Can confirm that does happen.Apparently, the demo isn't working 100% on Xbox. I think the tutorial is fine, but when it goes to a mission or something, it crashes. I haven't tried myself.
I'll give that a shot tomorrow.After the tutorial go to the Xbox settings and choose offline. Game should work just fine after that.
Played about an hour of the demo, really fun and really hard, love getting the timing of the counters right.
I had the error message come up a few times but didn't crash for me, really annoying though as the game still plays while the error comes and goes.