Your instructions simply say, Select a Challenge, play a card. Either your play system is not as intuitive as I expected it to be, or there is a flaw in the system for last players in a scene. I am unable to select a challenge or play a card even though there is a challenge available. And no, too many cards have not been played in the scene, so your response to the earlier post by someone who also could not play cards as last player in a scene does not apply.