[Problem] Noggit problem

[Gazzamah]

Heya all today I was working on my custom place in wow with noggit. And after I added some m2's and started noggit i saw this:


As you can see the whole land on that map part is just gone and replaced by some sort of wierd/bugged texture.
I don't know how to solve this.

I hope someone can help me out.

Tnx

[Gazzamah]

No1 that can help?