Lightmaps and multilpe materials from Cinema 4D

Development Rendering
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1

Hi, I’m modeling my own set of modular meshes to build my levels. Those meshes have multiple material on them and all works fine until I build the lighting that shows a shadow bleeding between a mesh and the other. So I have to Unwrap my second UV to correct this issue BUT, if I add a second UV map, my multiple material slots disappear in UE4.

So how can I have both? I use Cinema 4D, can someone explain this to me?

2

I found the solution, after I generate a second UV I have to rename them differently (like UVW1 and UVW2) and place them at the end of all tags