1 answer ·
asked March 29, 2019 6:27pm
· Lesson: Mesh Modeling Exercise 01 · Course: Mesh Modeling Fundamentals
Probably that`s because you are using Blender 2.8 which is not fully supported yet.. To resolve your issue all you can do for now is to export your .blend file to a different format and then upload to Sketchfab.
Read the waleguene`s original post here.
Hope that helps. Cheers!