Wikimedia Bugzilla is closed!

This occurred to me today on it.wp. I thought this was due to me thanking the users from a mobile device the first time, so maybe the Thank feature could not find a cookie or whatever it uses to remember that those users were already thanked.
So I thanked the users again from my laptop and they confirmed later that they were thanked twice for the same edit.
More: I could thank them again. Although I got the "Thanked" message in the history, it is now gone.

On en.wp instead I just checked the history of a page in which I usually thank people and the "Thanked" message is where it's supposed to be.