Rare pets

I have 2 ''rare'' pets on my Hunter, Kurken and Arcturis. Just minutes ago, i logged out to enter with another character, played a bit and returned to my hunter, just to realize that those 2 pets are gonne, they're not even in the stable. But for my surprise, the choose character screen, kurken still apears side by side with my hunter. Is this a bug from the server or something happened?

Edit
Solved, somehow all the icons for the pets in the stablemaster were on top of each other on the same slot. Just dragged one after another to the free slots, and the pets are back.