MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I usually slice in Cura. I've never sliced this one in S3D. Perhaps you can run it through a patch program such as Netfabb or Mesh Mixer. My computer is currently being repaired so I'm not able to convert it at the moment. Hope this helps!