I am working on a city map which causes CC3 to crash when Zooming and scrolling. I have done much bigger projects on CC3 and had no problems. Is there anything anyone can think of that could cause this? I have made quite a lot of groups and added extra layers, could that be it. Sheet effects are turned off...I am stumped.

One thing I can do, is export it as a jpeg. I might have to finish it in PS if I cant get to the cause of the crashes.

Other maps are fine and don't cause crashes.

Any of you ecc3sperts got ideas about what might be causing it?