I'm using FBBIK because I need to use the InteractionSystem to have my character reach for and grab objects. But whenever FBBIK is enabled, it appears to lock the character's head in place, in a very specific orientation, sort of looking down at the ground.
I can somewhat override this by adding a LookAt controller and using the IKExecutionOrder component to make sure that LookAt is applied afterwards, but even then, the result is a stupidly coy look, where the character's head is bent down and then sort of tilted to look at the target position. Again, if I disable FBBIK, the LookAt result looks great... but then I can't reach for and interact with things.
I expected to find a "Head Weight" or something like that on FBBIK, but there is none. Why is FBBIK insisting on making my character's head turn towards some arbitrary direction, and how can I either make it stop, or change what that direction is?