Sound notifications for incoming texts stopped working. I have tried everything in the app, all the settings are right, I've googled it and done everything I can find to fix it. To no avail. Very frustrating, especially when you miss urgent texts from children and grandchildren who needs you and they can't reach you. Unless I physically stare at my phone, I am not even aware that I have a message. All my other notifications work just fine, this is the only one that is giving me problems.