So, back from the trip. Not sure if my experience answered this question at all, but it does highlight some issues with the FP+ system, so I thought I’d share to see if this can be helpful to anyone.
Our Epcot day was planned for Friday, 8/30. Seven in the group. Here were our pre-booked FP+:
Spaceship Earth 1030a-11:30a
Test Track 11:30a-12:30p.
Complication 1: I got sick and didn’t go to Epcot. Plan was for me to help try to get FP+'s on the app from the room once the other six people in the group went through the initial 3.
Complication 2: My family did not arrive at the park before getting a message at 9:30 that Imagination was down and the FP+ would be converted to an anytime FP+ that didn’t include Tier 1 attractions. Let’s call this the Tier 2 Anytime.
Party arrives at Epcot, uses the Spaceship Earth FP+ without issue.
Complication 3: At 11:27, get message that TT is down. That FP+ converts to an anytime for anything except Frozen. Let’s call this Tier 1 Anytime.
I get on the app right away and am able to grab a Soarin’ FP+ for the entire party (not me) for 2:25-3:25 (maybe because of the 11:31 drop).
Party goes on with their day, eating lunch and going on attractions until Soarin’ FP+ time. Test Track remains down during this time (even though it showed wait times on the app during various parts of this day). Party does not want to use the Tier 2 Anytime FP+ because they don’t need it on any of the rides they were going on, and were worried that if they used it, it would use up the Tier 1 Anytime, which they wanted to save for TT. Did not think this would be an issue at all because I was able to immediately book a Tier1 FP+ (Soarin’) right after the TT FP+ became an anytime.
Party goes on Soarin’ at 2:30. I try to book a new Tier 1 FP+ and am not allowed to do so. Get message that they have already booked an experience from the list. At this point, party has used a Tier 1, a Tier 2, and had a Tier 1 and Tier 2 cancelled and converted to an anytime.
I call MDE customer service and get a helpful phone rep who tries to figure out what to do. After some time, he says the Tier 1 Anytime is causing the problem. Once they use that, should be able to book a new Tier 1.
I call family. Family goes on TT using Tier 1 Anytime now that TT is up and running again. Still can’t book Tier 1 FP+.
I call MDE help desk again. Get someone who is not at all helpful on the phone who offers no solutions other than having family go to guest relations at the park. I hang up.
I think maybe it is the Tier 2 Anytime that is still out there causing the problems. I call my wife, tell her to have everyone just scan into Mission Space, even though everyone who already wanted to get on it did. She does that. At this point, family has used FP+ on two Tier 2 attractions (SE and MS) and two Tier 1 attractions (TT and Soarin). Still cannot book a new Tier 1 FP+, get same error message.
At this point, I get a text message from someone from the Walt Disney World Guest Experience Center (Caitlin). She asks if we are still having problems with booking FP+. I respond yes, explain the situation, she says it’s fixed but she doesn’t see any Tier 1’s available. I then go to check, find a FP+ for Character Spot, and still can’t book it. I tell her it’s not fixed, getting same error. She then just issues family a new anytime FP+ that they can use on Frozen Ever After and says they’ll look into what’s causing the problem in the future.
So, I have no idea if burner FP+ still work anymore, but I do know that anytime FP+'s can cause problems with trying to book Tier 1 FP’s. If I had to guess, I think the Tier 2 Anytime didn’t register as using my original Tier 2 FP+. I think if we had booked and used a useless Tier 2 FP+ during that time, so that we used two Tier 2 FP+'s that were assigned to actual rides and a Tier 1 that was assigned to an actual ride, we would have been OK. If there’s anything to take from this, other than that the FP+ system is a mess, it’s to not assume that using an Anytime FP+ will count as using a pre-booked FP+ to give you access to book additional Tier 1’s.