Relatively new (~1 month old) Stromer ST1 with just a little over 300 miles on it. From the start of the commute home today, the motor assist became very erratic: Assist, no assist, assist, no assist, etc. If I were to guess, it seems like an issue with the torque sensor, as the motor appeared to work okay when pressing hard on the pedals, but with just normal pressure (which had worked up until this afternoon), the assist from the motor alternated on and off in a way that made the bike really unpleasant to ride. There doesn't appear to be anything physically wrong with the sensor, so it's a little disturbing that essentially a new bike is already starting to have these kinds of issues. Any thoughts?