So on my warlock, Blixky-Moon Guard, I just hit 1815 cr in solo shuffle, and received my Rival: Dragonflight Season 1 achievmenent.
However, I didn’t receive the elite pvp helm/shoulder xmogs. When I mouseover my current solo shuffle rank in my pvp tab, it’s still showing my rank as Challenger II, despite my rating clearly saying 1815, as well as me having the Rival achievement.
Reloading/relogging didn’t fix the problem. Never seen this happen before in all my years playing this game.