Add own animations to ThirdPersonController

So i have set up the ThirdPersonController with my own character (and avatar) and it runs great. I can move around and jump etc..

The only problem is that i want to change the run animation to one of my own (the default one dosen't fit my character). So i replaced the "HumanoidRun" animation with my own "HeroRun" animation in the blend tree (i just dragged it there)

Now the animation is playing as it should, however the character is not moving...He runs but he dosen't go anywhere....

Why is this? Why does the default one work but not my own? I have all the same setting in the animation...does it have something to do with root motion perhaps?