Hi, I've got a group who've each done a batch of Genie C08s with PTM switch inputs and LED outputs. The switches are fine but only about 15% of the LEDs are working. Some of the boards are a bit messy but most of them are neat, not bridged, not burned, and not dry. I can only conclude that the problem is with the soldering of the LED leg to the flying leads. What should I look out for? I may have taught this wrong but I've never had a problem before! Thanks.