The switch to the new AppCompat activities had caused collateral damage… a crash occurred when you told Google+ to “set the alarm clock to …” – needed a fast update! SAD! (*)
(*) Copyright POTUS Trump
it will take some time, but it has some new features:
Up to 1.8.22, you can only end an alarm, causing all kinds of (optional) after-alarm actions to be done (device speaks “the alarm is finished”, the roller blinds go up, all lights go on, etc…).
Now, by long-pressing the “discard button”, a waste paper bin appears on the alarm screen, and you can drag the discard button onto the waste paper bin, thus cancelling the alarm.
And he (or she) may sleep on… 😉