Whatsapp only shows numbers after android system update

[AC Question]

I just installed the system update, then went to whatapp and instead the names of my contacts i only see their numbers at the chats. I checked in my phone contacts, but everything is still there, so why doesnt whatsapp show the names then?

 

[Tim1954]

Try force stopping the app, wiping its cache for a start. If that fails, wipe its data too. Still no good? Uninstall and reinstall the app...
Contacting the devs is always helpful too...

 

[Tim1954]

After software updates it's always a good idea to wipe cache partition in the device to clean out the debris from the previous OS...