I am curious - I sent two messages to a friend several weeks ago. Never heard back. Checked my phone and it showed the "not delivered" icons. Later was on the web interface and it had "delivered" icons. Checked the app again and still "not delivered".
A week has gone by and the status on the app and web still do not agree. I have tried clearing my cookies and local storage for the web and even uninstalled/reinstalled the app on my phone. Still no difference.
Which is right?