Description
If you have certain notifications configured to be shown ‘grouped’ in the Notifications Center, you may find that on occasions the grouped notifications do not expand to show all individual messages when you double-tap on the group.
We have been unable to determine a clear pattern to this behavior, in that it does not appear to be specific to notifications from one or more apps. Additionally, grouped notifications from an app will behave as expected on one occasion, but then not expand the next time.