The model's left leg is perfectly fine. I can select the lower leg and with G, move the leg with auto IK. For some reason, when moving any bone on the body, the right leg's upper bone turns orange. The right leg will not budge when using auto IK, but moves just fine with normal rotation and positioning.
I'm very confused. The armature has no constraints on it. The bone just turns orange and won't move with auto IK.