I know this post is a bit old, but my Helix has the same problem. 3 of the lights don't work (the ones on the bottom right) tap tempo button doesn't light up at all, and the other two don't fully work. One only works with the color blue, and the other blinks and doesn't blend the colors correctly. I've thought about opening it up and reflowing the solder but this post kind of makes me feel it's pointless to do. Everything works normally though. Should I just move on as well? Did you end up just leaving it as is?