There is an upcoming change to Animators that may impact your experiences.
Animators search all of its parent’s descendants for animatable joints to update, unless that descendant has it’s own Humanoid, AnimationController, or Animator.
Next Thursday, August 26, Animators will only find and step animated joints within their WorldModel. It will NOT search for animated joints inside other WorldModels, you will instead need a separate Animator for each WorldModel.
For example, if you have a WorldModel in your animated avatar, which has joints to animate inside, those will no longer be stepped after this change - you would need to put a separate Animator inside that WorldModel to animate those joints.
Typically, each thing you want to animate is given its own Animator, so we suspect no one is doing this (at least not intentionally). If you are, please let us know if you’ll be able to update your experiences or share why this use case is important to you!