[URGENT] Strange crash

[Damascus]

I'm alpha testing my latest maps, and for some reason, the game is crashing occassionally when I change maps or when I resume a save file. It doesn't happen all the time, only sometimes, and I'm not sure what's causing it. I really have no idea what could be causing the crash. The map isn't very big, though I have noticed a notable frame lag when I play through my most crash-y map.

If anyone feels like giving the whole thing a go and seeing if there's any issue they can find, here is the group of maps:

http://www.mediafire.com/?5u2nwcaj15qe6kl

Here are the main issues:
1) Map 3 (West Wing) is giving me lots of frame lag. I don't know what might cause this, as the map is pretty small and there shouldn't be a lot of polygons.
2) Using the level door leading from Map 3 to Map 4 (Basement) crashes the game about 50% of the time when Map 4 is loading.
3) Resuming a save file in Map 3 crashes the game about 50% of the time.

I've had one beta tester report the same issue as me, and another report no issues at all.

[Rapture]

How many objects are in the map? I think it was around 35-40k and my maps kept crashing frequently, mostly on startup.

[Damascus]

How can I tell without counting manually?

[The chaser]

Have you used a custom entity for this? And: Start amnesia this way:

http://wiki.frictionalgames.com/hpl2/amn...evenvguide

I think it shows the polygons.

[Your Computer]

Error logs aren't useful to us.

[Damascus]

If error logs aren't useful, what is?

Also, chaser, dev mode doesn't work on my computer.

[Damascus]

If anyone feels like giving the whole thing a go and seeing if there's any issue they can find, here is the group of maps:

http://www.mediafire.com/?5u2nwcaj15qe6kl

Here are the main issues:
1) Map 3 (West Wing) is giving me lots of frame lag. I don't know what might cause this, as the map is pretty small and there shouldn't be a lot of polygons.
2) Using the level door leading from Map 3 to Map 4 (Basement) crashes the game about 50% of the time when Map 4 is loading.
3) Resuming a save file in Map 3 crashes the game about 50% of the time.

I've had one beta tester report the same issue as me, and another report no issues at all.