try hold the left and up arrow if that does not work do the right and up arrow and maybe try double clicking the screen before it
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I was able to recreate it by clicking off screen to my second screen. When I minimize the game and bring it back up it works fine, just when I click off screen.Also works fine in windowed mode, only happens in full screen. But yea left and up together or any combination doesn't seem to work, when this happens I am controlling the character again. Thanks anyway for the advice