TAB (leaderboard) stuck and can't do anything exept alt-F4

Well there is a bug when you use alt tab frequently it can glitch out and create that scenario where you can't do anything. because button to backout of leaderboard does not work same with esc,tab and other. even if i go and inspect someones profile, it just happends on layer under my leaderboard. Its like escape menu is under leaderboard and its just stuck. It did occur many times to me and i just had to exit out of a game and lose exp, so i think it is really gamebreaking.