I had to do a pairing again on my two IKEA Trådfri remotes (the round ones) with my Hue Hub.
After many tries it works and I am able to turn on the light and vice versa, but I can’t longer change colour temperature on the remote? That worked flawless before I had to do the pairing again.
Same for me. Suddeny one of my IKEA GU10 bulb disconneted from bride so I repaired it and after that I can’t change color temperature any more with a remote. Still possible though via app. Did You solve it?