The load/unload demo project utilizes dictionaires, html puzzles and the “scene” tab puzzles. I would suggest trying to recreate the project without the dictionaries and html puzzles first and concentrate on the understanding of the Scene puzzles. You can used a stand in 3D objects as a button to eliminate the HTML issues and then try loading in one GLTF.
The tricky part is that the main scene..will contain all your puzzles for the GLTFs you are ultimately going to load. I typically start my main scene project with the object I need to load inside it until I have Created all the puzzles…validate all the puzzles work then as the last step remove the object i want to load in. This will cause some of your objects puzzles to appear “red”, indicating the object is not in the scene. Dont worry about that since once you load the object…the puzzles will work.
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