My Samsung Galaxy S7 now doesn't show who is texting me in the pop-up.

[AC Question]

I like to know who texted me so I know whether or not to open my messages. Message hidden now appears. Why?

 

[Stalonage]

I like to know who texted me so I know whether or not to open my messages. Message hidden now appears. Why?

I believe under lock screen options the ability to have content hidden is under that. Check to see if it's enabled ?