I just set up my CC today and of course it doesnt work!! The blade can move up and down manually, but does not go down once the cutting of a shape starts. It just 'cuts' the air above the gum paste. No contact between the blade and gum paste is happening. In the videos I have watched, the blade moves to its start position, then automatically moves down, the starts cutting. Mine isnt moving down!! HELP! Is is broken?