Blender Import missing faces

Still new to Blender and UE4. Everything looks fine in Blender but after I import some of the faces are missing. Please Help.

Here is my .blend if anyone wants to take a look.

it looks like some of your normals are facing the wrong way, try what I wrote in this thread.

hope it helps:).

Rather than inverting the normals you can select all vertices and press Recalculate under normals, that should fix it.

Awesome! I’ll try this out! Thank you both!