Ever since I clicked on the "An old face has appeared" and tried to battle with one of my pets, my pet has been missing from the list you select for battle. It's the only pet that's missing, it's not hungry, and it's not in any battles (I checked). Any suggestions?
Actually, there's like forty topics like this if you'll look around. ^_^; You need to create a ticket, a UA will unstick your pet for you.
