Not sure what happened. No updates were made on my part, but it looks like the app may have automatically updated to version 8.1.5 as I now have options I didn't have before. (Not good in this case as it no longer works with my Samsung S5 - old phone, I know - but works/worked perfectly for my needs). I can no longer see, send, or receive any messages and all my past messages are gone. I've done everything I could - uninstalled and reinstalled it, rebooted my phone, etc. In my attempt to see if I could somehow revert to an earlier version (that did work with my phone) - I somehow was able to do so. But it only lasted a couple of hours before I received the message "com.verizon.messaging.vzmsgs has stopped working". It seems to be totally useless now - after working for years just fine.