Case hearing reminders were not received for some subscriptions

[agboise]

User 1 subscribed to three cases:
2018CR00001, Ada, Hearing at 4/19/19 at 1:30 PM (Subscribed 4/16 @ 2:24 PM)
2019CR00001, Boundary, Hearing at 4/19/19 at 1:30 PM (Subscribed 4/16 @ 2:24 PM)
CR141800005, Elmore, Hearing at 4/19/19 11:00 AM (Subscribed 4/16 @ 3:03 PM)

User 1 did not unsubscribe and received only one alert on 4/18 @ 12:00 PM. Reminder was for 2018CR0001. Unable to tell if this was for Ada or Boundary case.

User 2 subscribed to one case:
CV011700011, Kootenai, Hearing at 4/19/2019 at 9:00 AM (Subscribed 4/16 at 10:05 AM)

User 2 did not receive any alerts on 4/18. User message "delete" on 4/18 at 1:34pm to view current subscriptions and this case appeared in current subscriptions.

At this point we had not modified the hearing data at all, so all of these hearings should have existed. Please let me know what other information I can provide to help.

Images below are from User 2. I've also included a PDF of the data we uploaded on 4/16 at the beginning of testing.

TestIdaho01.pdf

[agboise]

Multiple users experienced this issue today.