hi, i have a figure which is rigged by using existing skeleton... and there's an ik problem with it. With ik turn off,  the figure's rotation and translation work well. but when turn on, the foot and hands stick at fixed position and doesn't follow the rotation well. In this case, i want it to be ik turn on in order to adjust the figure's hip well, without interrupting the hands and foot transformation. Is this due to the skeleton or a particular figure issue? since the other premade figure does'nt have this problem even with ik turn on.. or am i set and rig my figure wrongly? any solution for it?