How do I fix weird animation interpolation?

:information_source: Attention Topic was automatically imported from the old Question2Answer platform.
:bust_in_silhouette: Asked By Dedede
:warning: Old Version Published before Godot 3 was released.

I’m using the animation system to make a walk cycle, however between two keyframes the hand wigs out.
Here is a gif displaying the problem:

Your image link is broken.

Add an image of the components used to animate too (like animationplayer)

eons | 2016-12-27 04:51