front camera not working while video calling but camera app front camera working

[bsclix]

front camera not working while video calling but camera app front camera working fine.

[MZYR]

Go to app permissions of the app to give camera permission. This is the initial checkup.
Can you share which app or apps are not working with the front camera ?

[bsclix]

Camera permission on in all apps.
But front camera not working in video calling in whatsapp and facebook messengers