Character head/body not moving


I have a character that's seated at a desk here and I can't get her head and torso to move, no matter what. I've experimented with turning layer independence on/off to no avail. Combos include: body/head both dependent, body dependent/head independent, body and head both independent. Also toggled attach styles of head and body layers to various types and this also doesn't seem to have any effect. I made the desk and chair layers independent and set to the "free" attach style, as I didn't want these to be considered as part of the main character puppet. If anyone has any suggestions, I'm all ears. This file has me totally stumped. Thanks, all!
