Phoscon light grey out

Hello forum,

Canbee2
Raspberry pi 4b
image from phosco
Lights Müller tint spots 2

My problem is two of three lights are found. The other one is grey out.
If I start a scan the known light will be found but without manufacturer .
I have reset the lights to factory defaults and reboot many times. I have reset the phoscon Gateway Only one light will not found.
The tint spot is reset and lights normal.
It must have something to do with the phoscon app.
Does anyone have an idea?

Thanks
Cando

Hello, reception issues ? are you using an USB Extension ?
You can’t use the GUI to check network image ?

You firstly set phoscon in permit join (add new light) and after reset yours 3 bulbs ?