Hey there!
I have an odd problem I’m trying to diagnose.
So over time, my character shrivels up, the bones just move inwards.
I have character joints and Rigidbodies on most of the bones. The Rigidbodies are set to kinematic with Continuous Speculative collision detection and interpolation.
Picture attached:

Update: I disabled my scripts that drive any sort of upper body animation / ik.
So now the animation is just driven by a blend tree, pretty much only animating his legs to run / walk / strafe.
And now, only the legs are deforming:

Update:
Deleting the Rigidbodies fixed. Why though? They’re all set to kinematic?