I keep running into a problem where I cannot link a character to a body part of another character. I can link the first character to any other object in the scene, and I can link any other object in the scene to a body part on the second character. The odd thing is that I have successfully linked character 1 to character 2 at several other points in the animation, and unlinked as needed. It just fails sometimes. When the problem occurs, I get this error: "Failed to link. The selected item cannot be linked to itself". Char 1 can Look At char 2 without a problem. I have also tried closing the project, then re-opening to try again. No luck.

Any suggestions? Thanks