Whenever I play the game I keep pressing this button so It tabs me out, so I switched to Full-screen mode (not borderless ) which helped for 10 minutes than happened again because game itself changed to borderless - windowed mode. I don’t know if this is happening because something I am doing or just a bug but its frustrating and unbearable when there is a second Battle of Berlin going on and in the middle of it you tab out, giving them a free kill
Edit: This button ( http://imgur.com/a/iysKe ) way to F’ me up BBCode…