Notification Sounds disappearing

[ethan]

I had a problem before the update where my notification sounds randomly stopped and won't even play when I go to settings to change them. I click on the sounds, but they don't play. I hard reset the phone and they came back. I recently got the update, and the sounds stayed, but they've suddenly disappeared again. They were there earlier today and now they're just not. I haven't changed anything with the phone.