SERIOUS bug at the "Crazy" speed setting – Korean Flash Quiz Review

At the "Crazy" speed setting, the user interface replaces the flashcard content and buttons with a blue/orange gradient, covering the entire screen, then proceeds to flunk the player for not tapping on the now-nonexistent buttons. If you can fix this bug, I'll change my rating to five stars, because the rest of the game deserves that much.
Review by k8gladst1 on Korean Flash Quiz.