I tried to help you. You don't have them soldered propperly. If they flash when you unplug them, you have one that is not completing the current loop. That's also probably why your controller is flashing, I don't have any experiance with them though. If you don't ensure that your wiring is correct and just keep plugging and unplugging you will eventually burn them all out. Use an ohm meter and find the one that is burt out or shorted out with sloppy soldering or screws touching the star.