WaywardSoul

I'm trying to combine the Target, Player, and Group windows into one window and for some reason when I try to move the pet health bar to a different window, it gives me an error when I load the new interface stating that it can't find the pet health bar in the window I just moved it from. Everything else works fine except I can't move the pet health bar.

Is there a reason for this? Are there some bindings being done from some other XML file or from a server side operation?