I am not sure what you are trying to achieve with the animation I am seeing most of them working ?
I think when the box is opened, the model inside is displayed and there is an excessive effect. After I modified it, it still doesn’t work(https://www.babylonjs-playground.com/#BCU1XR#3459)
This is because you are creating
animation_Group before loading your scene then
scene.animationGroups is not the one you want:)