When I am looking at texts & a call comes in, I can't answer it. Why not?

[AC Question]

When I am looking at texts & a call comes in, I can't answer it.

If I have an app such as text messages open, I am unable to answer a phone call on
Galaxy Note 4.

 

[B. Diddy]

Re: When I am looking at texts & a call comes in, I can't answer it.

Welcome to Android Central! When the call comes in, do you see a toast notification box appear at the top of the screen?