Ok, i was using the landscape editor to flatten a region for some buildings, but when i ran the .esp in my game to test it out, the old landscape was there instead. When i walked through it there was no collision, and then i was in my fully textured and edited area.
it looks like this
[img]https://lh4.googleusercontent.com/rUDI0ICM5q7MeIYoQOKRyWEqN84_BsGoVHUEQFaZKbuzi_GSS7DKwx8ThfMeQ9V17CtrsG8Eh7c[/img]