Maya Puzzles export glb fails when the ORM texture is connected to two inputs?

I was able to repeat this behavior with the simple Verge3D demo cube, only adding my ORM packed texture png format. Here is the zipped Verge3D application with Maya file (app02_test.zip). Right now the Red channel of my ORM texture is connected to both Base Weight, and Specular Weight, so the Puzzle will not export a glb file. If you disconnect from either of those aiStandard attributes, then the glb does export.

Next I will check if it is my ORM texture, which came from Substance Painter, and was modified with Nuke.
Jon Tojek

Hello Alexander,
Thank you for looking at the file, and when you say working fine, did the final step of running the Verge3D app called app02_test activate the puzzle to export the glTF 2.0 compatible glb file for you? That is the important step failing for me.

When I open this example zip, then open the maya file, Verge3D -> Run App Manager, Verge3D -> Export glTF, then in chrome browser run my App called app02_test.html, yes the model shows up fine in browser. It just does not export my clean glb. Then as the next step, I merely disconnect the Red channel texture output from Specular, so that Occlusion channel is only going into Base Weight, then export, then run app. Finally the export glb puzzle activates and works.

I did watch for messages in the output window and script editor, but there was no information, here is a screen grab. Today I will try this again with Maya Standard Surface instead.
Thank you, Jon Tojek