You can solve this issue. Textra only closes when you directly reply using a notification. By default Textra opens a "Quick Reply with Keyboard" - this method produces a floating reply window that disappears when your message is sent.
To fix this. Open Textra, open Settings, choose Customize Notifications. At the top of this settings page is Action - press the action below (it will either say "Quick Reply with Keyboard" or "Quick Reply no Keyboard"). Change this option to "Full App" - from now on clicking a Textra notification will directly open the full application and it hitting send on a message will return you to either the message thread you replied to or the full list of all ongoing messages.
Anonymous
You can solve this issue. Textra only closes when you directly reply using a notification. By default Textra opens a "Quick Reply with Keyboard" - this method produces a floating reply window that disappears when your message is sent.
To fix this. Open Textra, open Settings, choose Customize Notifications. At the top of this settings page is Action - press the action below (it will either say "Quick Reply with Keyboard" or "Quick Reply no Keyboard"). Change this option to "Full App" - from now on clicking a Textra notification will directly open the full application and it hitting send on a message will return you to either the message thread you replied to or the full list of all ongoing messages.