I've had this issue for a long time, and it's quite annoying. Seems like HE doesn't pick up that a Hue room or group is on, unless all of the lights in that group are turned on.
Case in point: In my baby's room, I have the Hue dimmer remote set up so that the first on press turns on the table light at a low level, with warm white color, and leaves the ceiling light off. 2nd press turns both lights to 100% at soft white.
Now, the Hue app shows this correctly on that 1st press case (in the room listing, it shows the room as on, with 1 light is on), but HE doesn't seem to pick up any change whatsoever unless I hit the on button again to turn both lights in the room on.
It's not a timing issue, as it can sit like that for hours at a time, and never show as on in HE. Yet as soon as the other light turns on, HE gets the message.
Could this be an issue on the HE side that it is not picking up the change? Or could it be that the Hue bridge is not sending a status update?
Question for you: In the Hubitat Hue App, do you "only" have groups linked or also single hue bulbs? Reason I ask:
There is a minor bug in the Hubitat Hue App. You have to have at least on individual bulb linked otherwise your all of your group statuses won't be updated.... I had the same problem and lost a few hairs over that.
That is something I will have to check on. At some point in the past, I did try to get rid of most of the individual bulbs so as to cut down on device count and hopefully cut down on logging and traffic.
Are you saying that I would just need any single bulb linked in to hubitat, or one bulb from this particular room, on a per-room basis?
So it appears that I did have one bulb left over in HE - Kitchen Ceiling A. Still didn't help my Hue group status in the bedroom room. So I did add the desk lamp bulb in the bedroom to HE, and lo and behold, the group status updated when I turned that one light on.
I think there is a little more to it than having a single bulb added from the Hue bridge, and is probably worth having @mike.maxwell or @bravenel take a look at why Hue groups don't update when none of their individual bulbs are added to HE...
Here's the log of my experiment this morning (and the hue app is set up for 10 second polling, so I did give the kitchen long enough to react). You can see that Kitchen Ceiling A bulb was turned on for nearly 1 minute, and the associated Kitchen hue room did not log any change for the duration.
I then added the "color" bulb from the bedroom to HE, and turned the bulb on. Almost immediately (within the 10 second polling time), the associated Hue room reacted in HE:
Some further details... I've gone ahead and added both bulbs in the bedroom group to HE. Still seeing weird results. Seems to be, if the Ceiling bulb (it's a white ambiance bulb - LTW004) is turned on, it has no effect on the status of the Hue group, even though turning that bulb on shows that the room is turned on in the Hue app.
As soon as I turn on the color bulb (white & color ambiance - LCT014), the group is reflected as on in HE.