Plot hole: Bad guys tie lousy knots. Solo's bonds at the end are so loose that he easily slips his feet free to stop the swinging blade. And the rope across his chest does nothing to pinion his elbows or lower arms. He could have reached up with his hands to catch the blade at any time.

Continuity: Parviz starts the blade swinging while he's standing directly behind it. In the very next shot, he instantly "jumps" to a position on one side instead. Probably a wise move. We're just not sure how he did it so fast.