So I finished editing my video and was about to publish it. I tried previewing it one last time and pressed play but the clip just gets stuck and can't play. Only the clip gets stuck, the rest of the program works fine and I can scroll through the clips with my mouse but it just gets stuck trying to play.

Update 1: If I repeatedly click 'play' and 'pause' it gradually progresses through the clip frame by frame.

Update 2: Previous to this freezing I clicked on 'Take Picture from Preview'.