Game crashes while attempting to edit terrain

I am trying to make a map for my own personal use, but I can't get very far with it. This is because when I try to enter the "Terrain Editor" and "Terrain Painter" sections of the level editor, the game freezes, then crashes, every time I try to do it. However, it works when when I simply create a new, flat terrain (even though when I use some of the tools it still crashes, but very rarely), but I want to be able to work around and customize my own terrain, as that is what make a map unique.

Error Code: BeamNG.drive 0.14.0.1 0x00000001

map file attached

 

I've been having the same problem. I have been building this map on and off for about a month now and i only started having problems since the last update. I open the terrain tool and start editing. Sometimes it will go for a few minutes or so, but eventually it just freezes. I disabled all mods except for the map mod i'm working on of course.

 

It does it on every map. Even the default maps.