I have 3 1S color bulbs connected in the same place in my room. A month ago one of them started to acting up. When turned on, it was reddish instead of white. The only way to get it to work again was to turn it off and on from the wall switch - cut off the power for a while. I noticed that it mainly happened when the bulb was off (standby powered) for a longer time (around 20hrs). After turning it off and on from the wall switch I could turn it on and off from the app and it was working ok (no reddish color). Finally I decided to replace the bulb with a new one, and for now it is woking ok. The strange thing is that another bulb (one of those 3 but not the new one) started to do the same thing. It turns on with reddish color from time time. The firmware is 2.0.6_0027. Is this a hardware fault or a bug?