User blog comment:Rappy 4187/Technical Update: March 23, 2016/@comment-26408193-20160325164748/@comment-24258073-20160328062439

If they were promoted in chat, then the user might have needed to exit and re-enter the chat, to be able to use their chat mod tools.

When I was promoted to administrator on another wiki, I had to exit the chat, and re-enter it, to be able to access the chat mod tools which are accessible to administrators.