Rides are set to 'full' by the Reserve & Ride team when the maximum number of guests using the Reserve & Ride or Ride Access Pass waiting to enter an attraction is reached. So tha there is not too much of a delay in the physical Reserve & Ride queue lines, online reservations are stopped temporarily to allow the ride team time to clear the queue. This should only be for a short while. We suggest trying another of your favourite rides and check back later!