I have a UNNotificationServiceExtension that works fine i would say 95% of the time. However, ocassionally the notification arrives without the content that gets downlaoded and attached to the notification. I am also using a content extension. I've checked the logs and it has nothing to do with the code in the service extension, it's almost as if the system forgets to fire of the service extension in the first place. I've noticed this when one of the un-modified notifications came through and the service extension wasn't a running process on the phone at the time. Is this an iOS bug?