I checked my pets in about fifteen minutes ago, using the option to check them all in at once for extra sP. I then checked my pets page to take my gourmand pet out, but didn't see the notification on any of them that they were even in the resort. Thinking that maybe it hadn't taken, I went back and tried to put them all in again but got the message saying they were already checked in. I also went back just now, and the drop-down says they all have 21 days left.

I have tried a hard refresh and it didn't fix the problem.

EDIT: I think I was being impatient, the options are showing up now. ^_^;; Thank you!