Skinned Mesh Animation Playing Incorrectly

 The issue I'm having is that the torso bones of the skinned mesh won't animate anymore, they just stay static. This breaks the idle animation, as the torso goes up and down and it breaks the walking animation, since the character tilts forward. 

 Originally, there were only 3 parts; A torso, a head, and the HumanoidRootPart. The HumanoidRootPart was a flat plat on the ground where the torso bone attached to.

 I then changed the HumanoidRootPart to be a larger part (a hitbox) so that way the skinned mesh wouldn't get stuck on the smallest bump. I changed the previous HumanoidRootPart to be named "Main"

But now the torso bone of the skinned mesh won’t move during animations. There is a joint connecting Main and HumanoidRootPart

What the animation should look like (Inside animation editor)

What the animation looks like (in-game)