Materials say Scene-Root all of a sudden

I am using Autocad, I export to 3D Dwf (.dwf format) and upload to the sketchfab website. When I go to assign materials, it shows Scene-Root only, no material drop-down list. I have at least a hundred models I’ve uploaded and have never had this issue. I know AutoCAD doesn’t have material mapping, so I don’t have any .mtl files to upload. Usually, I just upload my dwf, then select my material 1, 2, 3, etc. on sketchfab and make my items the colors I want. I have tried re-exporting, re-uploading and resaving the file several times but to no avail. Can anyone help me?

Thanks for the report. It looks like we introduced a bug with some recent changes to DWF processing. We’ll be investigating.

Awesome, I look forward to your findings, hopefully it can get resolved soon!

A fix is on the way! Probably next week. We think we’ve found a good balance between preserving materials in DWF while maintaining some performance improvements we made last week.

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Thanks so much James!

Hello! Sorry for the long silence. This should be working again now. Let me know if you run into any other issues.

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