I believe one or more of the LED boards may have a bad chip that is draining the power on the blue channel. Please let me know if you are willing to open up the Razor, remove the lens covers and take photos of the LED pads that you're having issues with. I would also like to see a photo of the driver board. It is the red circuit board that has 2 round coils and 2 green terminal boxes on it.
Razor service manual attached.