Hi, what a simple automatic rule should look like for turning on the light with a smart switch and setting the bulb color. The one below doesn't work. The light bulb is on but the color does not change.
I have Qubino Flush 1 relay as smart switch, and Philips Hue RGBW bulb (Hue Bridge Integration).
Assuming you aren’t using this relay to cut power to the Hue bulb it should work.
Qubino cuts the power. So the Hue bulb will not turn on the color after cutting off the power?
No. The Hue need to stay powered and connected to maintain the Hue Zigbee mesh and to receive commands as well as transmit commands to other Hue devices. Just like zigbee or z-wave devices on Hubitat need to stay powered in order for the mesh to function well.
No doubt the rule is working, but the commands are lost due to the bulb being disconnected.
I'd recommend finding a way to make this work without cutting power--for the reasons mentioned above. Is there anything else on this load besides Hue bulbs (i.e., that the Qubino is directly controlling)? If not, there's really no reason to use a smart relay on the circuit at all. You could use one of the smart switches that let you disable the relay (a quick look at the Qubino manual, unsurprisingly for a device intended to be used like this, doesn't look like it can, unless the "momentary" setting for the "toggle/momentary" parameter happens to send events you can use on the hub without cutting power; but some Z-Wave switches/dimmers can). Otherwise, there are a variety of battey-powered remote/button devices you could use for Hue, either on Hubitat or paired to Hue directly (as well as a few in-wall options like I just mentioned). Maybe that would be better option for you?
But if you did want to work around this, I think @Ken_Fraleigh's theory that the bulbs haven't "booted up" enough to receive the commands is probably correct (Hue bulbs are on after power loss by default unless you change that setting through the Hue app for bulbs with sufficiently new firmware, so--if you didn't--it's possible that not even your "on" command is going through, BTW). If you really want to keep this setup, adding a second or two of delay before you run these actions will probably work. You can't do that with Simple Automation Rules (at least not without creating something else to trigger this automation with), but Rule Machine could handle the task. Your Hue mesh may still suffer in while they're off, but if it's otherwise robust, Zigbee is at least pretty good about self-repair (but I'd still avoid it if you can).
If your reason for using the Qubino is because of a specialized switch or particular look you're trying to maintain, then one possibility is to tie the hot and load together for the light so it's always powered. Then disconnect the load from the Qubino and just use its state change to control the Hue light.
There are new micro modules from Hue that are specifically for this purpose, but I'm sure they're much more expensive than a Qubino and I find them quite stupid because you have to pull your light switch out of the wall every 2-3 years to change the battery in them. 
Thanks to everyone for your advice, they are very valuable. I used the rule machine with a delay and it works.
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