In theory this is working, but in actuality the minute I do a track with the FK rig it still kills all other animation. You can see by the screenshot here that I did edit the section/change to additive. Whether I add the animation before or after the FK animation the result is the same–the FK rig silences everything else, so there must be another step to making it additive that I’m missing, correct? (Those two keyframes are just a quick head turn to make sure that part of things works, which it does.)
