I’ve spent hours looking at this, trying to touch up any soldering points that may not have been perfect, and there is no change. Any other troubleshooting ideas, like a way to manually connect LED2? When I hook up the 5v+ from the Arduino to LED2, it causes the ‘faulty’ LEDs to glow dimly, so I think your assertion is correct about LED2 not being connected, but I can’t figure out how to connect it. You can feel free to IM or email me directly to resolve this, if you like. If I can’t get this working in another hour or two of troubleshooting I’d like to request a return for some or all of this kit.