I was animating a humanoid model with IK just fine, but then the scale tool just stopped working. When I click a joint, the controls show up, but nothing happens when I move the handle anymore (unless I go from negative to positive or vice-versa on the axis, in which case that part of the model flips around 180 degrees). The rotate tool works just fine. I don't have anything on the HumanIK locked. I tried resetting the scale tool, but no dice. Could you please help me fix this?