Charactor Animator- Puppet moves randomly while walkcycle

If the puppet is armed, during playback it will show the default position for movements if not playing. Once playing it will show the recorded values. While scrubbing it kinda does the same. That can explain why it is jumping between being on angle to being straight in jerky ways - if the default is different to the recording.

I suspect the difference is due to whether the walk behavior is engaged or not. The walk behavior effectively takes over draggers on different points on the body to make the legs move, head bob up and down etc. The position of the handles will change the posture and body movements. So my suggestion is to try moving the handles a bit - e.g. do you have a Head and Neck Handle? Are they close to each other?

I don’t know why yours is doing what it is doing, but that is what I would be exploring. I don’t understand why the character is leaning backwards when not walking. The jumping I think is the normal behavior of showing defaults vs the current recorded value, but why the values are different I don’t know.