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My app is very notification dependent and I have recently noticed some notification issues which never used to be there before iOS 11.2.

1) Calling removeDeliveredNotifications on a notification by a UNCalendarNotificationTrigger does not remove it anymore, but it does remove notifications triggered by a UNTimeIntervalNotificationTrigger. (The fact that removeDeliveredNotifications doesn't work for UNCalendarNotificationTrigger seems very weird)

2) Pressing an action on a notification triggered by a UNCalendarNotificationTrigger results in all of the other notifications triggered with UNCalendarNotificationTrigger's to be removed, but does not remove any UNTimeIntervalNotificationTrigger triggered notifications.

Is this behaviour normal or have I missed something maybe in my Xcode project or in my understanding of these two triggers? Please help...

rmaddy
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Chris Mailer
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    I am also having similar issue. Notifications delivered with `UNCalendarNotificationTrigger` are not returned by the API - `UNUserNotificationCenter.current().getDeliveredNotifications` function. It always returns an empty array. I am particular observing it from iOS 11.2. – Kiran Jan 31 '18 at 11:39
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    Looks like a bug on Apples side. I’m surprised more people haven’t noticed. I just resorted to using UNTimeIntervalNotificationTriggers. – Chris Mailer Jan 31 '18 at 12:18

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