Seeing a lot of what I guess could be called phantom award space, i.e. nights that show availability at 60k/nt on the calendar but then only actually have availability for OWVs at 386k/nt when you click in to book. I'm guessing the Marriott website just isn't designed to handle this situation given how rare it probably is. Basically, when searching for award availability don't count your proverbial eggs before they hatch.