If you don't want the bands, that's a pretty expensive fp+ with no guarantee you're going to get A&E. A lot of people who have the full 60 day window say they've had to book out towards the end of their trip to get the fp+'s. A rolling window doesn't give you that advantage. Plus there's no guarantee how long this glitch or whatever one chooses to call it will last. Could be today, tomorrow or never that they fix it.
I would suggest you try for the back end of your trip, schedule 1 at a time if you need to and add others in the party on and overlap times if you need to. Also, keep checking. Availability pops up when people cancel. If all else fails, rope drop or during slower times of the day is your best bet to avoid a long line.
Good luck!