Hey Ben;
Just now have to entire weekend to dive into Easel Pro 3D and ran into this error:
https://easel.inventables.com/projects/3gn-4FWGwRjeTy2Q2MnRAQ
It said that "There was an Error Slicing your 3D Model, please do not modify this work piece any further, and paste the link and error message.
Thanks
Michael