I would like to report another bug. This time it is hard to reproduce in a PG but you can check the problem in my application: 3D House Planner
When I export any object without applying texture, the object’s UV map is not saved and when I import it, I can’t apply any texture.
The UV map of the object is only saved when a texture is already applied before exporting the object.
I guess that the problem is with the gltf exporter