Ok I made another save file this one is good one for testing parent parent display picker.
Go to dragon soul - blackhorn. Then go to the W icon, then go to style positon and click on parent display.
You won't see the snow flake icon in the list. The first time you do this you'll see a blank window for parent displays, just scroll it and things show up.
This save file has no cross aura displays, but maybe cause I bugged out earlier my profile is corrupt. Which I hope not spent many hours setting this up.
http://pastebin.com/6qxrTGDQ