Issue in Whatsapp

Hi, friends,

After updating my Whatsapp to version 2.18.52, I've noticed Notifications started to appear without the Sender's name if Previews are turned off in the app. I always turn off Previews because I don't want anyone to read my conversations from the Lock Screen.

In Whatsapp Previews are turned off (as I told you) and in iPhone, Previews are "Always".

It was absolutely normal till this update and, then, stopped working properly.

Is anybody experiencing the same?

How to solve it?

Thank you!