my Taycan was at a Porsche Garage again for one week, but the problem seems to be solved now. As far as I understood the latest software could not be loaded correctly because there were two modules which were not installed correctly before.
The technicians figured it out in a concerted action...
on mine it is stuck but I see a small blue circle just circling around. It was supposed to be fixed on a Porsche garage, but came back after 2 days. Only switching into enginering mode and restart seems to help?