Yeelight YLXD76YL HomeKit not working


I recently bought three Yeelight YLXD76YL ceiling lamps.
Two of them are working flawlessly, but one of them can’t be added to Apple HomeKit. Every time I try to add it I get the message „The setup code is incorrect.“

I already tried resetting the lamp like 20 times, updated its firmware via the Yeelight App, but none of that solved my problem.
What else can I do?