[cycles] AO baking problem


I am having a hard time trying to understand whats going on with an AO bake that im doing in this blend file:


So, let me explain you guys, I am doing the Vfx at a shortfilm scifi themed. Thing is that i got this Mothership model that i want to texture, but when i try to bake AO what i get is this:

As you can see im getting some kind of horizontal mirroed result from the bake. Anyone knows whats going on?

Thx in advance

Before you bake the texture disable the mirror modifier render visibility (camera icon)

Omg… im embarrased. :o

Thx for your time