Hi. I have an issue with a C-Bus system installed approx 3 years ago.\n\nSome lights, not all lights will fade in and out repeatedly. It takes about 5 seconds to transition between on and off. Then it will fade back on again over a 5 second period, and keep repeating.\n\nThis is isolated to specific light fittings, it is not random and it does not affect all lights in the apartment but happens to the same lights.\n\nLights and drivers have been tested and checked and are fine. Good quality LED lights with Dali drivers.\n\nHave replaced the C-Bus modules.\n\nHave checked for loose neutral.\n\nIt is not line wobble caused by electricity supplier for time of use metering as it happens at all time of the day. Also the lights can be fine for a few days or a few weeks before it occurs again.\n\nHas anyone experienced this before or able to assist?