Problem editing head mesh with Blender

[cebollor]

Hello. I´m trying to edit the vanilla mesh head.

 

I work it with Blender, but when I export the mesh and after loading it in the game the eyes have this bug:

 

My link

 

If only load the mesh directly with Nifskope and later I put in the game without Blender, everything go well. But, if the mesh happens through blender, the bug come back again.

 

Any idea?

 

Thanks, and sorry by english, its not my language.

Edited December 6, 2011 by cebollor