moto g5 plus won't save texts

[AC Question]

As soon as I have read texts they disappear

 

[B. Diddy]

Welcome to Android Central! Which messaging app are you using? Are you reading the texts in the messaging app, or in the notification at the top of the screen?

 

[broodyboy]

I am using Android messages and reading them in the message app before they disappear

 

[B. Diddy]

If you go back to the main screen of the Android Messages app, do you see all of your various conversations, or are they also not listed?

 

[broodyboy]

I see my sent messages only as the received ones have gone. To be more exact, if I am sent a message from a number beginning with 0 it disappears; if it starts with a + the message stays. unfortunately, i can't get everyone who sends me a message to change their number first!

 

[B. Diddy]

I'm not sure how to address that problem directly. Does this happen if you use a 3rd party SMS app like Textra?