Resolving iMessage & Messages Problems in iOS 8
iMessage delivery and the Message app typically works great, but some users have experienced a few frustrating issues since iOS 8 with either failing deliveries of messages, new messages not appearing in the Messages app despite getting a chime or alert that a new message has arrived, messages not marking as read, multimedia messages not downloading, or, in some cases, photo messages not showing up at all. If you happen to encounter any of these issues with Messages, we’ve got two solutions that should resolve any of the problems rather quickly.