Hello,
Same problem here, can't play the game because of this bug. When I alt-tab to kill the game I just want to uninstall, not to relaunch
And as this thread is about 2 months old I guess no help will come from here ...
Have a nice day
PS: I've also tried to map "escape" to another key on my keyboard (Apex SteelSeries) and both keys are working OK under windows and in game as well until the bug occurs.