My wife and I both have Samsung S7 devices for coming up on almost 2 years. We have both noticed that over the past couple of months that some times the other does not receive a message. We are both running Oreo, and using Android Messages. In the app on the sender's phone it show's a status of "delivered", In the last situation that it happened today, its a simple SMS, not MMS. Its a conversation between two users, not a group chat. Any help would be greatly appreciated. My wife thinks that I am ignoring her. 
