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 just noticed the same thing. Had to cancel printing chest_half_L_pt03 and its mirror because the hinge part isn't connected and my printer was just trying to print in thin air. A fix for this would be great.