I downloaded a few animations from Mixamo and the character is also from Mixamo. Of course, the animations are without skin and they worked perfectly fine. However, once I added root motion and changed the animation's type from Generic to Humanoid the animations don't play at all. Here is what's happening: https://gifyu.com/image/SIopY
I also tried to copy from the original avatar but that wasn't the solution. Here is my original avatar (look at the screenshot down below).
I also tried to configure it and enforce T-Pose as those were advices I read while trying to find a solution.
EDIT:
This is the animation after root motion
And this is the model in the rig configure tab.
