Ladder level transition problem

[Equil]

Me and my friend who are both building a custom story have run into a problem with a ladder level transition. I've scripted an area within the ladder area path that changes the map to the next one, which works fine, however it crashes during the load screen. I then experimented by placing the area on just a normal flat Plane, and it works fine.

So is there some kind of bug with ladders and level changing? This is what I thought and looked through the sewer map and script where you climb up that ladder which leads to the torture nave level, I didn't see anything fancy or different to what we've done.

We're quite stumped on this one, any help appreciated.

EDIT: I fixed it, I ran Amnesia as Administrator(I'm using Windows 7) by right clicking the .exe file, and no more crashing. Very odd. Not something I would have suspected. Anyone using Windows 7 should run Amnesia as administrator to avoid crashing I guess. :S

RE EDIT: Oops.. shouldn't have put the solved tag up that early. I managed to get it to work once, now it's crashing again. Very strange problem.