Why does my S7 phone delete my current text message I am typing when a new incoming text is received

[AC Question]

When I am typing a text message and a new message is received the current message I was typing is erased and the phone goes to the home screen. How do I fix this problem?

 

[B. Diddy]

Welcome to Android Central! Which messaging app, the stock one? Try going to the App Manager, select Messaging and Clear Cache.