Here is what I did: I had an animation where the character does
all kind of stuff with his upper body while standing still. Not just
body animation but props, reach and constraint weights are keyed
as well.
When I needed a very similar animation but in a crouching pose
I copied the already made take and pasted on top of the
crouching pose as an override layer. Then I deleted all keys on
the legs and hips expecting that I start seeing their pose from
the main anim layer underneath.
Unfortunately what actually happened was that all controllers in
the leg and hips jumped to the origin and kept overriding stuff
from there. How can I remove those bits from the layer?
For now I can save a crouching pose and paste that above the
complex anim, but sooner or later I’ll encounter a situation which
can’t be worked around this easily, so I thought I ask soon enough.