Why do I have dark areas on imported meshes?

I also exported the mesh with smoothing group and smooth mesh selected. Thanks

I have my light map UV set is on channel 1. Regular UV set is on channel 0. When I build the Production lighting I get no errors on the mesh. The mesh is inside the lightmassimportancevolume brush. Any ideas? thanks

#Calculate Normals

when you import the static mesh make sure to select Calculate Normals

let us know if that works!

Rama

Yes, that fixed it. Thank you very much. Have a great rest of the day.