Interior lighting does not stop

Hello, my wife has a Seat Ibiza 6F from 2019. We bought the car only recently, but now we have noticed a problem. The interior lighting does not go out when the switch is in the position where the lighting is concerned, when the door is open and you are in the vehicle. But if you have the switch on this position and then lock the vehicle by ZV, then the lamp goes out, so I remembered, but if I would later test again…. Does anyone have an idea of what that might be? Would that be a lack that you could (used) complain about when buying from the dealer and demand the issuance?