[QUOTE=
Delete UV channel 0 in your 3d modeling application, you have 2 UV channels when you only need 1.
You could also just tell UE4 to use the UVs of the second channel in the material editor with the TexCord node.
[/QUOTE]
i thought UE needs 2 channels when you import?! 1 channel for texture mapping and the other for lightmaps?