This is making battling very irritating at the moment.
Also happiness*.
Can you explain more what you mean by "resetting"?
It goes back to 0. Also happening to me. I fed my pet from 0 to 10 15 minutes ago, now it's back to 0.
Only happens to my active pet though (which happens to be the only pet not in a resort for me)
This has been happening to me too. Minions aren't keeping up happiness either.
Ok, I refreshed the pet page like mad, and I've come to the conclusion that it's not really resetting, it's just going down at a rate of 1 hunger/happiness per two minutes or so.
Similar case here, all pets with Minions yet 0 happiness by all of them. Attempting to bumb up at least the active one for battle quests didn't help much either, since in less than 10 minutes everything got lowered back to 0 at a fairly quick rate
Same issues here - hunger drops ridiculously fast (Shiratori was at max hunger about three minutes ago and is already down to 7/10 again, for example), and pets with minions are suddenly down to 0/10 Happiness. The only pet that's unaffected is the one I keep in the resort.
Same thing is happening to me.
[img align=right]https://i.imgur.com/Axtd3mF.gif[/img]
Huh..so I guess I wasn't miscounting the food I fed my pet this morning...I'll just feed her again; might as well get this food out of my inventory X) Though I don't like that her happiness is at 0 when she's got a minion.
My pets, all with minions, are all at 0 Happiness as well. I can deal. Their hunger is also at 0 even though I've been feeding them. The good news is their food counts are increasing on their 'food eaten' page so I'm not losing out on my 4K chasing achievement pet.

Same thing is happening to me. No pets ok for battle at the moment, even though I'm trying to feed active pet like mad. :)
o.o ... May this glitch effect me and last so that I may get the achievements. It was nice while it lasted.
It's still happening for me. Not quite as quickly, but, still pretty fast.
~~~Selling my literal soul for this~~~
There's all kinds of broken happening with pets:
If you need a sample, my pet Mevrouw shows on the pet's page as having a Dust, but it has no minion.
Pet happiness/hunger is going down every minute (I think) I fed my pets at :09, :11, :30, :32 til full, and each time it was going back to zero. This was around 11am, I haven't checked yet today as I've dealt with my BQs already
Pet happiness is going down even with a minion, which shouldn't be happening.
2025 Stalacbite, Focused (7)
It is still happening. Such a pain to battle while stuck with this bug.