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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I have a feeling you missed this from the Readme.md file:

  • Set 1M SPIFFS -- this project requires SPIFFS for saving and reading configuration settings.

This is where the settings are stored and it won't run until that is set before the compile and load.

[this is done in the Arduino IDE under Tools -> Flash Size...]