Greeting.
I saw some post with the same problem so I took a look but mine's still not working.
My whole FH work perfectly fine and yesterday i was making a map. When I tried to put a terrain, the game crashed so I deleted the terrain since there was a problem with it but, since this, I can't reopen my map maker as it make my FH crash. I have a modified texture and it worked with it. I deleted the meshes I downloaded to see if it was the problem yet nothing changed.
Any idea?
UPDATE: idk how but after some try, it finally worked ~