Joints "slip and slide" after posing and between transitions
I am having a strange issue after rigging characters and posing them. Probably best to just post the puppet so people can dig in. Here's a google drive link that's shared.
CHA_Muldy_Profiles.puppet - Google Drive
Basically, I rig the character and work with posing and when I press play, his wrist joints slowly rotate into their natural position, like dangle, but no dangle. Here is a video of the issue (low res)
When I move his arms to a different position using dragger, his wrists seam to slowly find their position and rotate to a rest. The return time set to zero and Hold in Place option selected. I record a two frame take and arrange/expand it accordingly. Then I use the slider on the take to smooth its transition. Now whether I use the slider, or not, the wrist still behaves the same, both hands. Any suggestions on how to stop this from happening? I'd be happy with single poses, no movement between but the problem persists even then which seams strange, like I've got something tweaked wrong.
Also, When I start to mess with the parenting after completing his head movement performance, the warp independent gets tricky. It looks great to have his body slightly change with head movements, but I can't get certain parts to plant themselves where they should be, especially when adding motions from the head or body. For this puppet, his feet keep moving when the head moves, and when I staple them, they get wild. If I fix the bone in the foot, he loses the pose. So then if I turn off warp independent, his legs get paired on a mesh which makes them look unnatural when posed in a sitting position. Any thoughts?
This is all pretty new to me (Illustrator, photoshop and animation) and I started down the path with DUIK tools in AE. I found it great, but the options and tools Character Animator has are so much faster when done properly, and often adding helpful features (shout out to the walk behavior!) I am trying to keep it simple but extensive to expand the limitations of what I can do.
Thank you very much for your time. What you guys are doing with Ch is very cool, game changing in many ways. All of your videos and training are so very helpful. Thank you.

