Illuminated ventilation nozzles

Good morning, it is getting dark earlier and I have a question about the lighting of the ventilation nozzles. I have the 4 zones air conditioning. At the front all the wheels of the ventilation nozzles are nicely illuminated. At the back of the central console the control panel for controlling the rear climate in the central console is illuminated, but the wheels of the ventilation nozzles are not. Likewise, the wheels of the ventilation control in the B column are not illuminated as well. Is that so right? I imagine that these were lit once. Maybe someone can tell me how it is and I can save myself the way to the workshop. Thank you and greetings Lars