Mine is doing this exact same thing with code U0128, corrects itself later. The switch is good because the bike doesn't beep when I try to take off, indicating it got the release signal. I suspect the parking brake motor. I'm trying something, applying the parking brake without putting a lot of pressure on the brake pedal. I wonder if pushing the brake firmly while applying the parking brake sets the pads too firmly for the low torque motor to release. We'll see.