I have the same issue, except with red. at first, i was able to get it to work by turning the bulb on/off with the switch. but eventually, it just died. was very disappointed, as I spent 59$ on it...

still having the same issue. switched to Philips Hue, and works much better. red led is still broken, and idk if tp link even sees this. you still have to use ifttt to color cycle, but it does it...

Model : Hardware Version : Firmware Version : ISP : My tp link bulb has just recently stopped using the red led. I can get it sometimes to flick on, but it never stays on.