In-game "Player Puppet" does not function properly for an unknown reason

Player Puppet: can still be able to replicate what you hold in either your offhand or mainhand; and can wear armor as well. But cannot be able to do player animations such as eating, sprinting, swimming, walking, sneaking, etc.

Player: does not seem to be affected by this problem.

This happens when:

• Animation Controllers fail to work, or is either running in the background; and/or
• For an unknown reason