In the pet journal the Armored Vaultbot, ( that looks like a walking safe ) is being represented by a red walking robot pet that I suspect is a store pet.
Summoning the Vaultbot summons the correct pet. just a display thing in the journal.
Renamed my vaultbot “Gnomer Jail” and haven’t tested to see if it still happens with the default name. But if that’s the case then the bug is naming something Gnomer jail
In the battle pet UI, the Armored Vault Bot looks like Rascal-Bot. It summons just fine, however, and Rascal-Bot still looks like itself in both the UI and after being summoned.
This is without any name changes and a completely reset UI.