theDanKelly, Jul 20, 2019 : I'm running: - Android version = 9 - OxygenOS version = 9.0.6 - Build number = ONEPLUS A5010_43_190527 This behavior occurs with (from what I can tell) almost every single push notification I receive. (So, it's not isolated to a single app that I can clear cache, etc.) After tapping on a notification, the notification icon stays in the notification bar; but when I swipe to show the notifications panel, there's no notification there (and the icon then goes away). Steps to recreate... 1. Start with an app for which you have notifications turned on, that you can trigger... like email. 2. Force a notification to appear... send yourself an email, for example. 3. Open the notifications panel... swipe down. 4. Tap on the notification. 5. Notice that the notification icon is still there. 6. Open the notifications panel... swipe down. (but it 7. Notice that the notification is NOT there, and the icon is gone.