Platform, device version and operating system:
Mobile, Android
Screenshot or image:
What you were expecting to happen, and what actually happened:
How often does this happen? When did it begin happening?
Steps to make it happen again
Reach a Pet Mastery level that is the same as a Kingdom identifier code, e.g. 3000+, visit Mailbox
I could have sworn I saw this mentioned on the forums a little while ago, but possibly in relation to Hero level? Can’t find it, though.
Up to Silver Necropolis so far