Animator data exactly the same, but animator doesn't work

If I drag a model that contains an animation into my scene, a GameObject is created with an Animator component on it. When I test the game, the object animates just fine.

BUT if I delete the Animator component and create a new Animator component with the exact same values, animations no longer work. Anyone know what’s going on here? And is there a way to get around this issue via scripting?

Just to make sure, you did apply the same Controller and Avatar to the “new” Animator Component, right? Also, is the new Animator Component on the same Top parent game object as the previous one with no change in its child game objects?

The following things will not allow you to animate your game object:

  1. If you place the animator component on something else than the model top parent which has it initially.

  2. If there’s no Controller and/or Avatar set in the Animator component. (The Controller allow the engine to “talk” to the animation system while the Avatar link the animation system to the mesh’ vertices by their individual vertices IDs.)

  3. If you remove a child from the Parent that has the Animator Component.(This breaks the Avatar references as the animated vertices IDs are now out of order.)

I do wonder “why” did you remove the Animation Component in the first place since removing and adding it back does nothing productive?