I'm getting a similar issue to Starscream- my battle pet is at 2/10 which should be generally accurate, but I fed my gourmand pet and within maybe 5 minutes he was back to 7/10 hunger. The remainder of my pets that I don't feed or have in the inn were all also 7/10 when I checked.

Two of my pets, Blackburn and Fels, ran down to 0 hunger while other pets not in the resort are sitting at 7/10. I gave them both Infinite Berry to see if they'd become hungry really quickly again.

[edit]both pets went down to 6/10 at 10:06 subeta time. Other pets are at 5/10. Might be unusually fast?

More edits: 10:22pm subeta time and all my pets not in the resort are at 0/10.

hunger def isn't fixed for me; random pets are going up and the pet im feeding isn't staying fed :(

Just chiming in to say that mine is off too - I fed my gourmand 10 items and battled a bit, then stopped long enough to have dinner (maybe half an hour?) and when I came back, I could no longer battle with her because she's hungry again. Normally I'd love such a quick hunger turn around, but not when I'm trying to battle. :)

Yeah, I'm still experiencing the hunger problem.

Still having this issue - hunger rapidly dropped from 10 to 0.

My gourmand is currently 0/10 (first time I've checked in a few hours) but all my other pets (who are all in the resort) are at 11/10 on both hunger and happiness (oddly enough, Morente's happiness is 12/10)

Yeah, my pet Carbonite is at 8/10 hunger right now and he's in the resort, so... lol

I'm having this issue even in the middle of feeding my pet. I'll feed 5 foods and get 1/10 filled up by the time I'm done. It just took me 4 rounds of feedings to end up with a full pet again.

Also my resort pets are losing points as well despite being in the resort...

This is taking even more time out of battling.

My pet Saars is in the resort and also sitting at 9/10 hunger instead of 10/10 like he should be.

my pet's happiness went above 10

also been feeding my pet and they're not full after 10 item seems to only happen for some food where hunger didn't react or one piece of food seem to make them hungrier somehow???

i was battling a lot earlier

I battled earlier with only 2 of my lower tier pets, yet a lot of my other pets are affected in different ways, happiness, hunger or both, and they all have 9 days left in the resort.
(Wish I'd remembered to check for a bug thread before filing a ticket :O whoops!)

My pets are in all the resort and none of them classifies for battling bc of hunger.

[edit]

Nevermind? I don't know if I'm crazy or if my hunger just jumped back up to normal, so...

This is still happening and combined with the lag, it's greatly affecting this time sensitive site event.

I'm losing food while in the middle of feeding yet again.

just reporting this is still happening, but only randomly (it seems to coincide with lag on the site).

any update on this? sometimes it drops to 0 within minutes, despite feeding 5-10 food items.

I have been using Brinnypoo. I fed her 10 foods at 7:13pm subeta time, I had no issues. I waited until 8:30 subeta time and checked and her hunger went down 1.

I will try battling shortly and if there is anything abnormal I will let you know.

edit: 9:27 and Brinnypoo is down to 2 hunger....I was just about to go do some battling.