Within the physics editor, the mouth closes when the model blinks. If I move the parameter outside of the physics, the mouth stays open. If I open the mouth in the phys editor, the mouth will close on a blink. I've checked any connections between the params, but there's nothing that should make it close. There's no deformers or art meshes connecting the two at all.
It's a VBridger mouth setup and I've checked each param.