Rendered Image - Green lines around objects

[savvassavva]

Hello guys,

 

I'm trying to texture a scene, what I did is:

-I converted objects to editable polygons

-I added Unwrap UVW modifier.

-Selected all faces of the object

-Open UV Editor and clicked on flatten mapping

-Then I render the UVW template and save it as jpeg

-Open photoshop and add textures on each face

 

It works well but for some reason the rendered image has green lines around the objects. The green lines that you can see on the UVW template.

Is there any way to get rid of them?

 

 

Thanks in advance