The 3mf is not generated by Bambu Studio

Falmouth/Penryn area

Save As… worked for me. Thanks!

I have been getting same thing past day or so on files downloaded from Printables. It’s like my X1C and P1S are celebrating Festivus. They are airing all the grievances about the problems they have with the gcode.

where did you find the save as option when publishing?

I Had the same problem. I saved the project with save as.
Uploaded again the project then in the next plage i replace the project with the same file. And it worked for me.