Animation controller attached to prefab instance doesn't work

I have a prefab that is a part of an asset bundle. The prefab looks like this:

Now at runtime I load the asset bundle and load the prefab from it. Then I create an instance of this prefab. Which looks like this:

But if I try to open the Animator window I get the following:

 Cannot show controller from asset bundle

And trying to play an animation or set a variable through the controller gives the following warning: Animator is not playing an AnimatorController

I'm using GetComponent to get the Animator attached to the instance.

Any idea what am I doing wrong? Thanks!