I can´t use animation 3 free characters animation.

Hello I am trying to make a proyect,where I use the "3 free character" asset from unity asset store.
I have already add to my scene one of the lumberjacks.
When I push play, the lumberjack model, starts walking because the component Animation is selected.
I can see that the Animation, "walk" works fine, as Lumbering and Idle animations.
These 3 animations work fine.

The problem is that when I create a new animator, and I make my transition from Idle to walk, this don´t work anymore.

In fact If I create a new anim clip, and replace the walk animation(from the asset) with this new anim clip on my animator, my new anim works fine, but it does´t work with de walk animation.
I don´t understand why this is happening.