Occasionally I do not get a sound notification when I receive a new imessage, even though the Ringer and Alerts level is high. Has anyone else experienced this? And if so, how did you fix it?
fwiw, this seems to happen only for senders who have their phone in 'do not disturb' mode (half moon icon.)
Thanks,
ik
iPhone 5s, iOS 12
Hi ik99,
It sounds like you're having trouble with notifications and we want to help.
You might have accidentally turned off alerts for these conversations.
You can change that and turn off the moon icon you're looking at with these steps:
"Turn on Hide alerts
.When Hide Alerts is on, a crescent moon icon 
will appear next to the conversation. This stops notifications only for that conversation, not your device. You’ll still receive all other messages and see notifications for them on your Lock screen."
Use Messages on your iPhone, iPad, or iPod touch
Let us know if that helps.
Thanks for using the Apple Support Communities.
Indeed! Thank you. I had noticed that the Alerts button was not crossed out, but misinterpreted its meaning. And didn't bother to validate my hypothesis.
Appreciate the quick response!
ik
No sound on incoming imessages - but only if sender's phone is in do not disturb
