Easel told me to copy/paste this so here it is.
my files open up when I looked at it. The second time it said it wasn’t public. Wierd.
Received this message last night and again today. I have closed the project, restarted my PC, connected to a different WIFI and still get this message. It happened when I changed my size on a 3d object to .4. Easel asked I copy the link below and send it to you.
i have a similar problem Error generating 3d toolpaths
https://easel.com/projects/xfMZ94osfCL6wuiSY8LTPA