Lumia 900 Alarm Problems?

[onedrummer2401]

So for a while now I've tried using 627 .AM as my alarm, but I've taken to setting an extra back up alarm because so often the alarm dialog will pop up saying "Time to wake up!" but the audio never plays. I tried contacting the developer but supposedly it's a problem with the core alarm functionality on the 900. Anyone else have this problem or a fix? Thanks!