I figured that's what was going on.

I'm at this one property 4n/wk, but there's times I'll either extend the stay such that it ends when the next week's reservation starts, or (esp. if the rate is lower) will book the add'l days on another reservation. In both cases, that initial stay won't credit to my account for nearly two weeks after checkout. I'll get credit for the subsequent stay before the previous stay posts.

I guess the system sees that I haven't left the property, and holds onto the first stay for manual review or something. I got bitten by this after having accrued enough nights to make Plat, yet they hadn't shown up yet at the time I'd booked a FS stay and wanted my bennies. (A call cleared it all up.)

... but I just realized- does MR even have any "stay-based" benefits?