I keep a few events that start at 00:00 (overnight flights, day-long deadlines). They show up in the app's list, but the alarm never fires for them — not once. Events later in the day work fine.
Thank you for the report. This turned out to share a root cause with the snooze problem: a malformed event identifier meant the check for midnight-start events always failed, so those events never got an alarm at all. Version 1.14 fixes it, and events starting at 00:00 are alarmed like any other.