Insurgency Mapping Crashing with Displacement

[Mangojuice]

Hi there, just joined up on the forums, my name is Luc.

I've just started working on a map with Hammer for Insurgency, and I've hit a bummer roadblock. I'm hoping there are some community members who create maps for Insurgency who might advise me.

Basically Hammer crashes after working on painting geometry for a few minutes. I'm using 512x512 blocks for the ground of the playable area.

I'm pretty stoked about getting back into mapping, however it seems to me that the Hammer editor is quite unstable.

Thanks, any insight is appreciated.