Moving machine to fast...... And did you put your pressure foot down? You need to run your machine (pressure foot fast) and move your hands slow. What happens is you are moving your machine when the needle is either coming out of or going into the sandwich and then pulling the needle to the side and it hits the plate and snaps. Also make sure your thread isn't being twisted around anything. Mine would twist around the end of the post when in the horizontal position and catch, when I put it on the vertical post this stopped.
Ask me how I know........ :roll: