My highest ranking battle pet was just defeated by Blood Bat during Battle quests, fight was over, went to heal him, he wasn't showing as available for healing...clicked refresh several times, made sure he was out of the quest... he's just not showing up.
I know you said he is out of the quest but did you check your status page to make sure he is out of the battle?
Dexter by ❤
He isn't in battle, and actually, the healer is only displaying 5 of my 11 pets for potential healing, so idk what's going on. None of the others were in battle or ever have been.
http://subeta.net/pets/Wiz%20Khalifa He is at full HP. That is why he isn't showing. It won't show anyone that is already healed.
Dexter by ❤