Poser uses two types of scale channel 'scale' and 'propagatingScale'. The BODY actor of a figure needs to use 'propagatingScale', so that when scaling the BODY (which is an invisible actor), the scaling effect will propogate to the children and sub-children.

Jessi also has problems. Some of the actors in her legs use 'propagatingScale', which they should not. It's even worse than that, the legs are not even consistant between right and left as to which actors use 'propagatingScale'!