I've just completed putting the red ring together and have hit a snag. I put the clock in alignment mode and worked my way up to test the red layer. I started aligning the bulbs and when I reached the LED at 3 o'clock it will not light and a cluster of 5 LEDs on the bottom blue ring come on instead. This blue cluster is located at either side of the three o'clock position. The blue ring in alignment mode works fine. Polarity of the red LED is correct and I've looked for everything else that is obvious. The chronodot has not yet been installed. Help!