Recently I've been trying to get one of my maps nav'd up so that I can playtest it with bots. However on my most recent version, no matter what I do, the nav_analyze section of nav_generate always crashes very soon after getting into "Computing mesh visibility". I'm not sure what could be causing this apart from visleaves, possibly, but in that respect I cant really do anything about the matter since my map is already well-optimised and being a 3-round CP it's rather large. My brother has nav'd Dustbowl with no problems but I've tried my map on different PCs and it crashes each time.
Any help would be much appreciated. I can also upload the .bsp if need be.