I originally asked about this in the Technical Discussion forum but didn't really get an answer and it was suggested that I try here, so I've deleted that original post.
This is just one of many examples where the Full Body IK solver seems to do strange things with the root bone when using it to transfer animations between skeletons.
As you can see, the root bone is floating up over time and I've no idea why.
I know I can work around this by manually moving the root bone after the solve but is there any way to prevent this during the solve? Is it a bug, by design, neither?
I've attached this very simple demo scene to illustrate.
Any help would be most appreciated.
Thanks