I get errors when I try to import a saved paint3D .GLB file to a Facebook post.

I get errors when I try to import a saved paint3D .GLB file to a Facebook post.

It seems weird to me I can open a Blender .obj file in Paint 3D and use Paint3D to save it as a .glb file that I can import to a Facebook post with no problem.

But the above is the only time it works?