Has any one had any problems fitting the above to a 2017 model bike ? Fitted as per instructions but now intermittently stops working and cuts out all pedal assist. All connections are good, and by removing the dongle and un plugging and plugging back in, seems to make it work again. Also, the mission control app, seems to create the same problem. Do you think it could be a software incompatibility issue with the 2017 model.