Not receiving message sound notification on iPhone 13 Pro Max running iOS 18.5

"No messages sound notification IOS 18.5: I turned Announce Notifications on and off. Then turned “Attention Aware Feature” on and back off and my ringer notification works now as well as my text notification. Weird but it fixed it."

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Report this Bug Fix to Apple:

Do your Part: These are just user-to-user forms. Apple barely reads the forums as it is on their own time and will. Apple will know nothing of this concern, if you do not spread the word to them. So, report it to Apple. They wont get back to you directly, but the more they hear about this, the more likely they will look into, knowing what is going on. They will know knowing of this fix, if you don't report it to them.

1. Go Here: Feedback - iPhone - Apple
2. Select: "Bug Report" for the "Feedback Type"
3. Comment: on the issue, the solution, and how you can across it. Include the URL of this thread.
4. Proceed from there as necessary.

Check this, first.

Or Use and customize the Action button on iPhone - Apple Support (IN)

Then please check the following.

• Check your DND status - Settings > Focus [Do Not Disturb]; Use Focus on your iPhone, iPad, or iPod touch - Apple Support
• Check BedTime Status - Clock App; Use Bedtime to track your sleep on your iPhone - Apple Support
• Check your iPhone Sound Volume; Adjust the volume on your iPhone - Apple Support
• Check Call Audio Routing; Call Audio Routing Bluetooth / Speaker / Automatic
• Check Auto Answer Calls; Turn off Auto Answer Calls
• Check the list of Blocked Numbers --> Block phone numbers, contacts, and emails on your iPhone ...

Notification Preview when Screen is Locked, Notification Alerts, Notification OFF, and much more...

1. To get Notifications when the Screen is locked see the pic below which is self-explanatory
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2. To turn ON notifications selectively for apps, go to Settings > Notifications > Scroll Down to the App and turn ON notifications... Change notification settings on iPhone - Apple Support (IN)
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3. Some apps have their own notification settings over and above the iOS notification settings: An example of Instagram Notification settings is given below
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4. Help for Notification Alerts --> No Notification Alerts - Apple Community
5. For VIP email Alerts refer to the pic below
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6. The pic below is self-explanatory
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