Disappearing appearances

Hey! I got a new helmet from the Ulduar goodie bag and transformed it into a hc tier noetic of the forgotten reservoir. as I was going to mog it back to the normal version to match the rest of the gear, the normal appearance has dissapeared from the collection.

It is “colored” in in the collection screen AND I STILL HAVE THE EFFIN ITEM IN MY BAGS but the mouseover says “aquire a base version of this appearance to unlock it for transmogrification”.

First the guild back effup, and now mogs are getting screwed aswell. If I spend my time collecting stuff in Wow, I need to have a reasonable faith in that the results from the goals I work towards will be persistent untill that time my char goes to the Halfhill farm and logs off for the last time.

As things stand now, this confidence is being seriously eroded. Why should I even bother to do things when they get “lost” or “cannot be restored”. If I would even manage to find my way to the depths of the submenues to send a bug report, Im sure it will be summarily dismissed.