Can’t load up Two Betrayals on Legendary. Easy, Normal, Heroic all work fine, but when selecting Legendary, I don’t even get a loading screen, the game just crashes.
Apparently a bunch of people have had this same issue, only with Legendary difficulty as well. You could try a hard reset of the console, uninstall/reinstall MCC, or maybe play offline. Hope any of those work, it’s definitely frustrating 
Yeah, just reinstalled the game, and still no luck. Tried playing offline just for the hell of it, and turns out it worked! Thanks for the recommendation.