Android “Screen Overlay Detected” message if user is trying to grant a permission when a notification is showing

Question

I have Android Marshmallow on a Nexus 6. I am trying to fix the following problem:

If a user is trying to grant permission while a notification is showing, a \"Scree

Answer 1

This happens when you have granted overlay permission to malicious apps. Go to overlay settings and disable the overlay feature on all apps that don't belong to google and you will be good to go.