Problem with importing FBX from blender

I made simple model for my game in blender (without animation) and it looks like this:

244008-screenshot-2.png

I exported FBX from blender and loaded it into UE4 with these settings:

But after importing instead of getting model i get only parts of model:

Does anyone know how to fix this?

Combined the meshes. In blender I think the shortcut is ctrl +j. There may also be an option to combine meshes in import setting you took a pic of. Either place is fine.

I combined meshes in blender and exported it into FBX again but this happens after importing to UE4:

Also, using UE4’s option to combine meshes doesn’t do anything

Recalculate normals

Thanks it works now