I am trying to do an fbx slideshow like the one here: https://help.sketchfab.com/hc/en-us/articles/203058018-Animations#annotations
I have all my .fbx in one folder, added the sketchfab.timeframe(with all the modelnames e.g 0.5 table.fbx) file textures in a child folder, zipped and tried uploading but it gives me an error: > The file is invalid (Error 13). Please check the file or use an exporter to ensure compatibility.
How can i fix this? Thanks.