Colliders on child objects not following parent's animation.

Non-Ragdoll Movement:

Ragdoll Movement:

The model I'm using for my enemy consists of 3 meshes (head, torso, and legs) and I have box colliders attached to each of the parts (so I can deal damage according to the part hit). Everything worked as expected, the colliders followed the movement of the enemy as well as the movements produced by the animation. Later on, there was an update to the model that brought ragdoll functionality to it, so I switched out the version I was using for this newer version. However, now the colliders only follow the movement of the enemy; they don't mimic the movements produced by the animation. I have the new model set up exactly the same way, root motion is enabled for the animator, and none of the colliders are triggers. Does anybody know what is happening here? Is there something additional I need to do when the character is a ragdoll?