This happened to me too a couple of days ago and still today at Hilton Waikoloa. It says that standard room rates of 60,000 points per night, on the search listings page, but go to the room booking page, no standard award rate to book on the room that would be standard, only money rates. But there are premium room awards available on other rooms. I though that Hilton's policy was that a standard award is always available if the room is available to book for points. Im not sure if this is a glitch or not.