Did Lolipop break all the Adroid alarm clock apps?

I've used Alarm Clock Xtreme since I got my Turbo months ago. It worked great until recently. Now it goes off at random times or not at all. Today it went off 22 minutes late. The alarm was and still is set to the correct time. Obviously this is unacceptable. I went to the Play Store to try a different app, and the newest reviews for the first 10 or 12 alarm clock apps on the list all say that each app has become unreliable. They can't ALL be junk.

Is this yet another reason to miss stable, good-looking KitKat?

TIA,
Mayor of Simpleton

Have you already tried this instructions from AVG? You could also try clearing the cache for the app and then reboot your phone.