HABPanel doesn't show light color or brightness

[rossko57]

You’ll be interested in this Zigbee thread.

Zigbee Bulbs update immediately to UNDEF, Items don't change from this

I wonder if anyone is having the same trouble as I am: I recently reworked my openHAB setup, as part of it, I factory reset and updated the firmware of most of my Zigbee things (using their various hubs). I’m also now on the latest openHAB distribution (2.5.7). Since then, I cannot get my bulbs to correctly report item status. They respond to direct commands fine, but the item never updates. This makes it impossible to toggle an item depending on its current state, e.g. a button press I use to…

As for your IKEA remote, who knows. You linked it how, and to what?