Message app closes when I switch to a new app

[Android Central Question]

My phone just started doing this thing where the messages app closes itself. So if I have the app open then switch to another app using the button at the bottom, messages will close itself and I cant switch back to it, I have to close out the app and click on the icon. None of my other apps are doing this. Thoughts?

 

[Laura Knotek]

Which phone do you have, and what version of Android is it running? What messaging app are you using?