Arvmishra89 , via OnePlus 7T , Nov 8, 2020 : I am facing many times issue due to sudden calls in between some important transactions... I need call up pop option..
EarCanD303 , via OnePlus 7T , Nov 13, 2020 : Try checking your phone app notifications settings and permissions. Could be that those settings are off. Display over other apps and Modify System Settings should be enabled. Hope that helps .