If I textured the object to sketchup and bring to 3dsmax using channel 2 Unwrap UVW, does the it affect the lightmap in UE4?

If I textured the object to sketchup and bring to 3dsmax using channel 2 Unwrap UVW, does the it affect the lightmap in UE4?

Once I imported to 3dsmax, Im using UVW xform in order to preserve my texture UV from sketchup
and flattened it using unwrap. When I import to UE4, i got some black patch on the edges.