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.
The same problem, I get a message that says "something went wrong". I am using Firefox 61.0.1 (64-bit).
This is one of my designs:https://www.thingiverse.com/apps/customizer/run?thing_id=3043241
In my computer it seems to work.
Update: If I try to create a new file, I get this error on queue: