Short description of error
I'm trying to use the "Copy Visual Location" and "Copy Visual Rotation" functions from the Copy Attributes addon to get around a problem in rigging a character.
(BlenderArtists post: https://blenderartists.org/forum/showthread.php?440992-IK-FK-setup-Bone-position-changes-when-dialing-between-Child-Of-constraints)
Normally, copying visual transformation works perfectly fine. But when the bone having the visual transformation applied to has a Child Of constraint, the result is always offset. Demo:
Example file attached.