I guess it probably has something to do with the time zones, but the archives are always delayed by about an hour or so at midnight. In other words, a feed in the Eastern time zone will "hang" on the last 15 minute segment completed prior to midnight local time, and won't show the next day until after 0100 Eastern time. It's almost as if it has to delay an hour because the servers are in the Central time zone, and they don't advance to the next day until an hour after Eastern time? I know I'm not explaining this very well, so here is a screenshot to illustrate. It was taken at 0110 Eastern time on the 22nd. Note that it hasn't advanced to the 23rd yet, and is over a full hour behind.