This happens on all my characters.
I claim a creature companion/pet certificate it is added to my companion/pet stable. I can summon it, dismiss it, I can even claim another certificate to add more pets.
If I log with a pet summoned when I log back in the pet tab will is gone from the inventory window. If I claim another certificate the tab reappears but all pets are missing from the stable. If I log out with a pet summoned when I log back in its the only pet in my stable remaining.
Is there something wrong with my account where I can't keep pets? I feel like the game thinks I am not responsible enough to take care of them.
As of now I am just stowing away pet certs in my bank as it just seems wasteful to claim them.
Note: I do not have any issue with mounts.
Thanks, if anyone has some advice or possible scenarios for me to test let me know.