Whatsapp cannot see received emoji
Actually this problem happened when it was a new iPhone. I am using iPhone 5S and iOS 7.
Firstly, I have to say I am sure I already installed the emoji keyboard.
At the begining, I cannot see the emoji when in lock screen, they all change into '!!', but fortunately I could see it inside the app. So it did not confused me. The nightmare was happened after I updated my whatsapp today, all I received emoji inside the app also change into '!!'. However, I could see emoji send from an iPhone. So now I am wondering wether is my phone's problem or whatsapp's problem. Could anybody give me a clue? Thanks!
iPhone 5s, iOS 7.1.2