Thanks for the reply.

I don't notice any slowdown at all. The engine just simply crashes after I turn the camera a little bit. As I mentioned the level loaded fine in previous versions of 3DGS/WED.

I just tried a few more things and I'm beginning to think that it has something to do with one certain area of my level--when I pan the camera around things seems okay until I turn toward the northeast part of my map, and then it crashes. Every other direction seems okay. Anyone know what could cause the engine to crash like this?