Fatal error on HPL2 editor

[Urkle]

I just hammered away at it for a while and threw doors, windows, floors, walls, static objects, entities. and switched all over the place (having it generate the caches) and couldn't recreate a crash.

Also the crash looks to be in apple's code and the editor itself is just sleeping. I would suggest running a system diagnostics check to make sure there's not some memory issue. Also does your system get extra hot when running the editor? it could be overheating issues too..

If you could get some more different stack traces (that details you posted above) from different crashes (try rebooting first)