[3D Sound] Some Server groups not being added

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Hello I am trying to setup 3D Sounds so that a specific server group sends all whispers to one ear. http://ift.tt/2dKRm8r In this screen I have successfully set up X, Y and IN-K groups but when I try to add the LOGI group, or any of the other highlighted in the screenshot nothing... [3D Sound] Some Server groups not being added