Custom User Login Avatar not reflecting on the lock screen.
Bug summary
When updating the user profile to a custom avatar or image, the image does not show on the lock screen.
Changing the picture to one of the pictures in the predefined list, then it reflects when locking the screen. When you change the profile picture to a custom avatar and you logout the session, then the user profile image appears. When you try and change the profile picture again it defaults to the last custom picture, until you logout of the current gnome session.