Importing model having bone problems

So I am trying to import this model into UE4 with a basic walk animation. I get a couple of errors.

“FBX bind poses is invalid” it will be ignored.
“Warning: the following bones are missing from the bind pose then it says to use t0 as ref pose if they are not set correctly after importing.”

I have been assured all these are included in the file, however the imported model is much smaller then the character already inside.

Could a scaling issue be causing this problem?

Little more detail. The models were rigged/animated within blender.

I have tried using the updated fbx importer with no avail.

Any thoughts?