The emoji button is missing in my samsung s6

[Supertito]

The emoji button is missing in my samsung s6 when replying messages in whatsapp from notifications bar

 

[Supertito]

any help ..

 

[jasonandrews25788]

many users have reported the same bug:
https://forums.androidcentral.com/samsung-galaxy-s6/674977-emoji-missing-s6-keyboard.html