Ovverlapping UV's on Combine Meshes

[Clarity]

I go Crazy !

I have a model splitted in 14 Parts I created for all this parts a seconed UV Layer. When I import the Mesh without combine all the Meshes on Import everything is working.

BUT If I want to combine all the meshes on Import, I can't build the light anymore "Overlapping UV's "

[Jacky]

If you are going to combine them eventually, then merge all the meshes in your modeling software, create a second UV for lightmaps and then export.

[redbox]

you need to combine it in your 3d editor, and then layout second UV channel for this combined mesh.

[Clarity]

Yes I also tryed to combine it in my 3D App and made a Uv Set for all the parts toghter http://abload.de/img/uvforallpartswuss3.jpg. There is No overallping but It still tells me.

I think i have to work with Parts models... becouse they work :/

[Kelt'ar]

Did u create the uv layout after combine?