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.

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Tried both Simplify and Cura, having the same problem with both.
The neck is too thin, you need to make the wall thicker or the slicer will ignore the wall.
I managed to print it on Simplify by changing the thin wall behavior. But ideally the model need an update.