So I log in today to play with my new teal Skystrider that I just won in LON. After I was done, I turned my "Never Show" on for mounts... only he didn't go away. I then tried to put on the Flight Wings for the appearance for him, but when I called him again, he still showed up. I tried unequipping him, reequipping him, again, he shows. I tried zoning, still showing. I tried relogging, still showing. I camped to desktop and came back, still showing. My other mounts all behave as you would expect, this one just seems to want to ignore everything, from another appearance (flight wings and griffon are ones i tried, I don't have any other gliders to test if they would work) to Never Show being on. Here's a screenshot showing me, on the mount, with both an appearance mount set and mounts set to Never Show.