After using the animation many times, the trajectory of the animation is not correct

[heianqishizhisuiyuan]

Here's a chunk of code that animates a polygon:

https://codepen.io/heianqishizhisuiyuan/pen/GRjzeGq?editors=1111

when i first click the small polygon, the trajectory of the animation is right, when i second click the small polygon， t the trajectory of the animation is not correct