I just returned from a rather long (4 year) absence, and I found I had a loyalty box. So I opened it, and got the username change item. I attempted to change my username, and it seemed to go through, until... https://gyazo.com/104bfa8bbdb29e03ea3ce3af198b8331 This popped up. What do?

Your UN should change in a few minutes if it hasn't already. This just tends to happen when you UN change with a loyalty box

Thanks so much. It changed. :)