Disappearing notifications

If you activate Do Not Disturb, all your Notifications will be hidden.

Some of the other Focus profiles may be able to do the same. Therefore, check if you have a Focus profile activated. You can see this in the Control Center. Swipe down from the top right corner and find the Focus button, just below the Rotation Lock and Screen Mirror button. If a Focus profile is enabled, tap to disable. Your Notifications should reappear.

If Do Not Disturb or another Focus profile activates automatically, then a Schedule is active.

To disable or delete this schedule, go to:

Settings → Focus → Select Profile → find SET A SCHEDULE → Tap into the time → tap Delete Schedule or just deactivate.

You can read more about how to use Focus here:

Use Focus on your iPhone or iPad - Apple Support

alex88d Said:

"Disappearing notifications: why do my notifications disappear from the notification center?"

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Troubleshooting Disappearing Notifications:

Notes disappear when swiping from the lock screen to the Home Screen.

A Few Links that may Help:

• How to Turn Notifications and eMails On or Off in Apple News - Apple Support
• View and Respond to Notifications on iPhone - Apple Support
• Change Message Notifications on iPhone - Apple Support

Inform Apple of this:

If this has disappeared, then you can recommend to Apple that they include this spec in their iPhone.  Apple won't get back to you directly, but the more feedback they receive on this, the more they will know what suits their customers' needs and wants in versions to come.

1. Go Here: Feedback - iPhone -Apple
2. Select: "Bug Report" for the "Feedback Type"
3. Comment: on when this began, and how you have troubleshot it thus far
4. Proceed from there as necessary.