Whatsap not displaying message number on icon

[Tafflad]

Samsung Galaxy S21
Whatsapp is installed and working.
On Whatsapp on other devices when you get an incoming chat .... you get a number of the bottom right hand corner of the icon.
Great if you missed the notification sound, away from your phone etc.

Currently if I get an incoming WhatsApp chat message it does not get a number or increase the number to match messages.

How can I get this back working - tried de-install and reinstall - no change.

Contacted WhatsApp they asked me to check that notifications & badges were enabled - which they were., at that point they said its a phone issue.

 

[mustang7757]

This is the default launcher you're using?

 

[Tafflad]

I’m sorry don’t understand that Q.
The phone is standard, only standard apps added no modification to OS if that helps.