I've no idea so I.....................

Loaded figure.
Posed figure with hand on hip.
Turned on IK chain for arm.
Rotated chest.---------> Hand stayed on hip.

Chain break on hand.
Rotated chest.---------> Hand stayed on hip.
Twisted shoulder ------------> Hand stayed on hip
Bent forearm ----------------> Hand stayed on hip.

Turned off IK and hand released from hip.

What did you get when you tried it?
What is it that you are trying to do?