Edaptable Rig Tweens Like Shapes

I was trying out EDAPT for the first time today and managed to rig it properly and whatnot. The KineFlex tool worked properly and smoothly, but when I tried to animate it in Timeline using Classic Tween, the rig animated like classic shapes. It was as if I hadn't rigged it at all. The part would move from their original position to the next without considering the relation between them. I tried using the 'Make Edaptable' helper several times, but that also did not work.

Attached is a video depicting my issue and how the rig works with the KineFlex tool.