I'm so fed up with this app. Each time I message a potential relative, and I turn light off phone while I have to pause to help my father whom has alzhimers disease, it then freezes my message to them and It won't let me send it, edit it or even see their messages again. I have to force-stop the app & clear the cache to fix it. I've also had no replies from some relatives that have been online & have used the app longer than me, so they will most likely know about messaging. Bet its this issue!