The randomness continues for me. An Autograph hotel (Hotel Nia) posted ~24 hours after I checked out last Friday but the previous night's SF St. Regis stay still has not posted. Booked both of those stays at the same time about a week before them so post Bonvoy flip-over. Meanwhile, a St. Regis NYC stay from two weeks ago still hasn't posted, even with me submitting a missing stay request 72 hours ago. Westin Denver Airport from Monday still hasn't posted when that same hotel posted T+24 hours earlier in January.

No rhyme or reason that I can discern.