On my commute nowadays I only have one such light. Tried parking all over the sensor area with no effect. Weirdly, sometimes riding down the center cut the "Don't Walk" for cross traffic will start. As if the light is going to change. When it gets to 0, the "Don't Walk" changes back to "Walk" and the light stays green for cross traffic. Is it possible the sensor can pick up a moving bicycle better than a stationary bike?