@dfg5133 and @NCperson: my 2019 return was accepted, but my refund is on hold because I somehow neglected to file for 2016. I had no clue, but I don't have anything in my own records to prove otherwise. I was surprised by this because I received refunds for both 2017 and 2018 with no issues.
Anyway, I sent in my 2016 return, but who knows when that's going to be processed since they're not doing paper returns right now. While I don't believe that this will prevent getting a stimulus payment, I too see a pattern of it screwing with the payment date, reading through this forum. I'll update once/if my date is ever given, but for the time being, I'm in 24-hour jail, too.
Speaking of 24-hour jail, I'm still trying to figure that one out. I assumed it would reset around the same time that the dates are supposedly updated (i.e. some time overnight). I hit the "too many" threshold around midnight last night, expecting to be able to check again this morning, but I'm still locked out, which leads me to believe that the 24-hour lockout is indeed a full, revolving 24 hour window. Good times.
