Hi Tim,
Your files worked.
I checked all export and import setting and I believe its all correct!? See images attached…FBX is also 2013 and I’m using 4.4.3
Here is a link to my files if you want to give them a try. Dropbox - Error
I never mentioned before that I use maya 2014. Also in the image attached you can see both cubes with smooth edge visibility on. Im still getting 23 on the smooth edge cube.
Cheers
J