For some reason, not sure why, my notifications go awry. I noticed this a couple times when I received a text only to hear the sound of a reset and not a chime. However, it did not reset and it just played that sound instead.

So I go to the Sounds, notifications in settings and find that there is no drop down box to set a sound for any of the notifications. The box just wasn't there. My selections for vibrate were also not set either. After a soft reset, the drop down comes back as well as all my previous settings. This has happened at least a few times now.

Anyone know why this is happening?