Can you expand the TypeError so we can see the rest?
It seems its having an issue with loading your gltf in general.
If you haven’t already tried this re-install 3.71 and export the gltf and see if you have the same issue. The 3.8 Blender GLTF exporter may have issues, its a .0 release.
When you say large models…how large are you talking?
Do the models comply with the suggested topology for Verge?
You may want to dump all materials, clean your scene and then export that model again and see if the GLTF causes the TypeError. If it does it might be model-specific…if it doesnt it might be material specific. This doesn’t rule out puzzle errors.
When you load scenes in your initial scene has to contain all the puzzles of the upcoming scenes to be loaded. You will want to check that the names of the objects in your initial scene that are referencing the new scene are spelled correctly and exist in the new GLTF that is to be loaded. And of course you will want to be sure none of those puzzles can be executed before the scene is fully loaded so be sure those are encapsulated in a procedure and fired after the load.
You can always share your project and we can take a look.
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