I have create a simple box opening and close animation in my blender project using the NLA editor, I need to export this project to gltf format in order to convert later on the file using Reality Converter to obtain USDZ file (with the animations open and close stored).
I can't understand why in blender the animation sequance is perfect, the box open and then close, but , when I export in gltf and open it on Reality Converter I only see the open animation.
How can I export the multiple animation in order later on convert it in USDZ format.
I need a final usdz file with multiple animations stored (so I can activate the animation by code (AR Project) )
I attach a screenshot of my current working animation in blender.