Anyone Have a Puppet w/ Multiple Views + Separate Head/Body Control (Extra Tilt) + Body Tracking?

I know it's complicated, but until recently, I have been using a puppet with this rig structure just fine...

...With the Frontal view tagged as "Head," I could get the extra head tilt. And to use Body Tracking, I simply untagged this Frontal "Head," and CH wouldn't get confused. But this no longer works; perhaps coinciding with the addition of Motion Library? I've tried multiple ways of restructuring it, plus removing different tracked handles, and the character's torso either pins to the background or does something like this...

And this does not happen with Body Tracking off, even with Motion Library on and the Frontal "Head" still tagged. I have not found an example puppet with all these aspects combined (multiple character views like Standing and Walking + extra head tilt control + Body Tracking) so if someone has one, please post the rigging structure, if you would. Hopscotch is close but doens't have multiple character views. Removing the Standing view may be my only option. It seems like the path Motion Library uses to get to the handles overrides everything else smoothly but Body Tracking doesn't.