I've had two Cree CR6 down lights hooked up to a 6NA dimmer for about 4 months without any issues until now. Just two days ago, the dimmer and lights started acting up as follows:
1) Sometimes the dimmer's lights will just start to flash rapidly and the dimmer becomes unresponsive. I need to reset the dimmer with the air gap switch to get it working again. Then it works for a while again.
2) Other times the Cree lights themselves with cycle on/off constantly in a sort of light show effect. By playing with the dimmer level, I can usually get it to work properly again.
3) Finally, it will work fine at times, but not for very long. I'd say I have this working properly about 50% of the time.
So what's going on? The Cree CR6 has a Lutron report card, so I don't think there is an incompatibility issue. I've also checked the wiring, thinking maybe the neutral connection was bad, but everything looks really solid.