Cheers for sharing mate and sorry to hear about that.
I would appeal too but I was worried about having the same outcome or myself losing the seller account. I still don’t understand, the stuff I uploaded was the same process as the Sketchfabs uploading system and It has worked twice before with my other models.
https://support.fab.com/s/article/Getting-Started-with-Sketchfab#:~:text=First%2C%20you’ll%20want%20to,files%20anywhere%20on%20the%20page:
“It’s best to prepare your models by combining all your files into a ZIP file. Not only does this allow you to upload your textures/materials all at once, it also reduces upload size and time.”
It does not mention this in the new upload rules on the Fab Asset File Format and Structure Requirements.
Feels like it’s an automation tool that is a little jumpy.
I may appeal a week or so from now when the team gets thier stuff together, (busy launch week for FAB of course), or ask what IS the specific file that’s not acceptable. I have one other model I will test and see if it is something with that specific object I am uploading.