The track is really grabby and doesn’t allow the shuttles to move freely. I am unable to draw an ellipse as the grabbiness is more powerful than the magnet. I’m pretty disappointed. It also took 3 months to get here. I appreciate there was hold ups in manufacture but I spent a lot of money on this drawing tool so far I haven’t been able to use successfully once. Is there a lubricant I can use to prevent the shuttle from jamming?