disabling the Nvidia GameWorks smoke and debris has fixed the crashes...no more crashes after disabling them...the game actually looks better as well for some strange reason...the rain effects are really impressive...now it looks closer to Arkham City from a graphics standpoint...everything seems a bit overly complicated with all those AR challenges littering the map...so those are separate from the 'regular' Riddler trophy challenges?...any point to completing the AR stuff as they seem very Batmobile dependent and annoying
The AR challenges are different than the Riddler thing. The AR challenges give you upgrade points if you beat them, but that's about it. You don't have to do the AR challenges to get the 100% ending.
