My rank glitched to rookie when I logged in. It shows the rank gain from my last game, which got me into silver 4. My rank updated now to what it was before I ranked up to silver even though ...
Ideas
You can try restarting the game and checking if the rank updates properly. If the issue persists, you might want to contact support with a screenshot of your rank history. Sometimes, ranked progress takes time to sync. Hope it gets sorted out soon!