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Object has overlapping UVs.

I was porting a project from unity to unreal and it keeps saying: Object has overlapping UVs.

Make sure that you use a correct lightmap/2nd uv channel with non overlapping uv’s. Here you can read about it: http://www.worldofleveldesign.com/categories/udk/udk-lightmaps-01-basics-and-important-principles-for-creating-using-lightmaps.php :slight_smile: