Thanks for being with Samsung and for sharing your concern. We would like to suggest you to kindly share your query to Microsoft support team, they will surely help you in this regards. - Apps that can appear on top>Deny Screen overlay permission for Problematic apps> Go to App again and use.
bro..i was facing same problem..u only need to go to settings>applications>select app in which u r facing problems>app permissions>turn on permission.. problem resolved..
