Datasmith problems

Hello all,
I am currently doing a sport car project and the modelling was done in Alias AutoStudio. When I import my work into UE4, it looks incomplete and most of the surfaces are missing.
I am attaching a pic to see what I am talking about.
I would appreciate if someone could identify the issue or give me a solving solution.
Thakns in advance!

Hello Krobes04,
do you still have the issue on your import?
The image was not shared on the forum.