iOS 11.2: Clearing/Action on any notification with UNCalendarNotificationTrigger causes all delivered notifications to be removed

Originator:mail.junjie
Number:rdar://36019616 Date Originated:December 13 2017, 9:53 PM
Status:Open Resolved:
Product:UserNotifications Framework Product Version:iOS 11.2 (15C114)
Classification:Serious Bug Reproducible:Always
 
Area:
UserNotifications Framework

Summary:
When a notification scheduled with a UNCalendarNotificationTrigger is cleared from the notification center/lock screen, or when any notification action is used, all other delivered notifications by the app are also removed by iOS.

Steps to Reproduce:
1. Schedule multiple notifications to fire using UNCalendarNotificationTrigger (in 5 seconds time)
2. Return to lock screen or home screen and wait for the notifications to fire.
3a) Attempt to clear one notification, or:
3b) 3D Touch a notification to reveal its notification actions and choose any notification action.

Watch attached video, and check out sample project.

Expected Results:
Only the notification that is specifically cleared by the user should be removed from the notification center.

Actual Results:
All delivered notifications by the app is removed.

Version/Build:
iOS 11.2 (15C114)

Configuration:
Tested on iPhone 7 Plus and iPhone X.

Notes:
This does not happen on iOS 11.1.2 and earlier. This problem only happens on iOS 11.2.

Comments

Workaround

Add some text to content.body: 

content.body = 'Any text'
By fujianjin6471 at Sept. 20, 2018, 8:30 a.m. (reply...)

Workaround

Add some text to content.body: 

content.body = 'Any text'
By fujianjin6471 at Sept. 20, 2018, 8:30 a.m. (reply...)

The same happens to me both iPhone X and iPad Air 2

By harryworld at Jan. 17, 2018, 8:30 a.m. (reply...)

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