Same Rig But different result, WHY?

Hi guys, I drew a similar balloon puppet on Character animator's homepage in Adobe Illustrator, I made the same rigs as in CH, but something ridiculous happened, I'd be glad if anyone has a chance to take a look.

https://drive.google.com/file/d/1fHgT3LiI4It3hNuKf1RYPY8d7KxVnIZ5/view?usp=share_link