New tire learning: menu item not available / not callable

When changing to winter tyres, the menu item for learning is not available. If you call up the tyre pressure indicator, only strokes are displayed for all four wheels. When pressing the reset button on the left steering wheel switch, nothing happens (even after 1min). However, the reset button works in all other menus. In this attempt, the ignition is switched on, the circuit is in idle, the hand brake is tightened. We have played around with all these switches, the Menu item doesn’t come. See photo. Of course we didn’t want it to be true that it’s on the menu, so we also tried the following: – Activating the sensors using an activation box does not bring any change – A nearby summer tire is shown again after activation – driving around 20km with over 40km/h does not bring any change – the question whether the tires at all answer to the activation is clearly with yes to answer, you can answer the signal listen to the radio frequency 433,92MHz – yes, send the tire sensors It seems to have nothing to do with the activation of the sensors, it is only not possible in the tire pressure indicator to reset the learned tires.What do we do wrong? How can one reset the learned tires? Thank you and always good ride Volker