The three dots that used to show up when another iPhone user was replying to a text do not show up anymore. Is that a setting that has to be changed somewhere? I used to like those dots!
I don't think it shows up if the other person has Read Receipts turned off.
Karen is right. If your referring to one particular person, they may have turned it off in settings. But if you get none from anyone, especially if those have been working, then it may be something else.
Sent from my ancient but trustworthy iPhone 5