What dates are you trying for? I just finished my 5 day stretch of setting an alarm for 2:55am PST for the 3am reservation drop. Today they would have dropped for January 13, tomorrow will drop for January 14, etc. I saw the Blue Bayou reservations last from anywhere between 10 minutes and 35 minutes during those days and did not have any problem securing a reservation. If you don't pick them up at the initial drop, they are hard to get. Lots of people have had luck with getting reservations from dining alert services (alerting you when there has been a cancellation). Calling is not an option at this time.
ETA more detail. I set my alarm for 2:55am PST, went into the app, made sure I was logged in, went into the "Check Dining Availability" section, pulled up the day that was scheduled to drop, plugged in my party size, picked the day I wanted...all this before the clock struck 3am. Then I had my finger positioned over the TIME I wanted (click on specific times ...NOT Breakfast, Lunch, or Dinner). Once the clock struck 3am I immediately clicked on the time, the reservation availability showed up, and I clicked on the specific time I wanted -- from the 3 choices or so given. I never had any issues and always got what I wanted. Blue Bayou dropped every day that way, but I did notice that Lamplight Lounge reservations did not drop the last day of my 5 days trying, like they had the previous 4.