thanks. I am glad the scripts work for you! I haven’t tried using Animations with 3d launchers yet, but the documentation at https://docs.microsoft.com/en-us/windows/mixed-reality/creating-3d-models-for-use-in-the-windows-mixed-reality-home#animation-guidelines
mentions it should be possible. Generally, when you see an empty box, it indicates the 3D model is somehow not in a supported format and invalid. Try checking again, if your model fits the requirements mentioned in the documentation.