I reached Platinum Pro two days ago and while it's reflected online, something weird seems it have happened with my flight today. One of the legs of the outbound was upgraded at about the 24 hr mark but the other was not.
When the agent printed my BPs today, one of them shows me as OW Sapphire, and the other (the upgraded one) shows me as Emerald. I get that there can be weirdness with existing reservations when status changes, but this wrinkle caught me a bit by surprise.