Hi Kyle

Check out this handy schematic.
You missed 1 small thing. The base_def_out parenting is backwards.
How do you fix it?
The Lid_MCH should be parented to the base_def_out (not the other way around)
Then make sure the base_def_out is parented to the base_def (connected parenting so it gets the bending to work)
Hope that helps.
The fix shouldn’t break any of the animation you have done either 😉