Help with master controller

I’m very new to ToonBoom, and I just made my first rig.
All the limbs are working properly, but when I try fidgeting with my expressions’ master controller the whole face moves away from the head, even if the peg for the face is connected to the expressions’ peg. This is what my character looks like after I toggle the controller:

It keeps happening no matter how many times I put the face back in place. I feel like there’s an easy fix for this, any help would be appreciated.

Hi,

Did you change the face peg’s parent hierachy after you created the MC?

The position values applied to the face peg are those of the positions that this peg had relatively to its next parent (peg) at the moment when you created the MC.