With patch 5.0 Funcom added this shiny thing in the group window as well as in the pet GUI window. You will need to disable them if your customized ui changed them else you might crash, a lot.
Go to X:\Age of Conan\Data\Gui\Customized\Views\TeamGUI
Delete folder "TeamGUI"
Go to X:\Age of Conan\Data\Gui\Customized\Views\PetAndFollowerGUI
Delete folder "PetAndFollowerGUI"
And then wait until the UI creator fixes it.