Lighting Artifacts

Okay, I have been trying to get a simple static mesh imported and whenever I do I get these weird lighting artifacts and I can’t figure out whats causing them.

Here is an image of what I’m talking about.

This is the static mesh options screen.

and my lightmap.

Any help would be so greatly appreciated.

Which UV channel is being used for the lightmaps? Is it set to 0 or 1?

EDIT: looks like your mesh appears pretty screwy even in the mesh preview window. Did you accidentally not export surface normals or something? I can’t really tell what is going on with such low resolution images.

no the mesh is fine, its just a quick blockout piece and the UV channel im using for the lightmap is 1.

Oops i feel really dumb, I wasn’t exporting as a 2013 FBX I was exporting as 2014…
Thanks for the help anyway guys, it’s always the little tiny issues that screw stuff up the most.