I am having an issue with smoothing groups.
As you can see in the picture, the Polys of the dome are clearly visible and not smoothed, on the right hand side of the dome however they are.
All Polygons have been assigned the same smoothing group (I checked 5 times) but only ~50% of the Mesh is actually being smoothed in UE4.
I have also tried recomputing normals and tangents in engine and tried so many different import settings that I can´t remember them all.
Any ideas or suggestions would be greatly appreciated.