Smoothing on objects not working (from blender to UE4)

I’m having a problem with the smoothing on objects from blender to UE4

In blender i have a simple smooth object and i applied edge split to it (it’s also UV unwrapped) and it fine.

But when i import it into UE4 you can still see the edges. I’ve tried several different methods and i’ve also tried messing with the LOD settings (recompute tangents and normals.) and i’ve tried all the different smoothing in the export menu in blender. (also when i enable recompute normals they’re even more visible.)
Please help, thank you