In the chat room, sometimes ranks are showing the old number and sometimes the new number. Here's a shot showing the mix:
Kaworu Nagisa is actually 6d now, and sometimes shows in chat as 6d, but is currently showing as 3d.
Also, suggestion, cap all displayed ranks at 9d. Even if your rating is 13d, show a 9d rank, not a 13d rank. Tradition and all other servers kinda require 9d to be the max shown?