Hi. Just picking up this thread again, to see if there have been any developments.
I set both firefox and chrome up to run web gl, but the same problems persist.
My models only have vertex colours on them as opposed to any material files, as they typically have well over 1m vertices which means a huge image file needs to be produced.
I can see the wireframe, but no colour data mapped on to it.
Maybe the software is looking for a material file that does not exist ? I have no problem on the laptop though.
Let me know if this works on your phone please ! https://skfb.ly/6sKFU