Mounts locked, but random mount unlocked with weird name?

[Shapeshifter-21359]

There is already a Blizzard post on the issue, they are working on the bug:

Happy/Angry/Sad Clouds Bugged?

Hey everyone! I am so sorry this happened but we are aware of this and looking into it. I appreciate any continued reports of this, and if possible when reporting this, can you let me know what Mount / Skin / etc. you are seeing as locked so I can make sure they all get restored properly. I also want to confirm that these items are not “removed” from your account, but by the actions of a bug, locked from use. You should regain access to these items without any problem once the issue has been r…