How can import a mesh from blender without losing parented sub meshes like eyes?

I am trying to import a character from blender to unreal engine, the animations are in good shape as well as the base mesh, but my problem is the eyes, whenever I import it , the eyes are missing. I’ve been trying to find a way but no hope up until now.
I have attached 2 pictures regarding the issue.

Any advice/help is much appreciated.
Thanks in advance.