Wandering Hand in a Rig

I have a problem with a rig I recently created. I have an FK hand that is parented to a forearm, however, when the rest of the rig moves the hand wanders a little bit. I have tried everything and haven’t been able to fix it. Does anyone else have any ideas?


Where here is a visual example of the problem I have. If I disable the constraints the problem persists.

To begin with, that’s not an FK rig at all. That’s IK, so good thing you showed it to us so we weren’t troubleshooting a rig that doesn’t exist. Wandering IK could be a symptom of incorrect parenting or incorrect chain length. Can’t tell what the parenting relationships are from that screenshot, nor what the settings on that IK chain are.