Hi!
I'm not sure why it doesn't work, it's been a while since I've been using Unity, might be that with newer versions they messed up something with the Animator, or it's not able to find the path to the assets. In the Animator Controller what does it show under the Sprite property?
I'm sorry for the inconvenience.
New version must have broke the "Motion" for everything, in the controller no "Motion" is added for anything, even in the animation no Motion is added for each of those either :(