Continuously activated engine sound in KIA EV6

Moin in the round! I started the latest update in my EV6 at the end of December. The negative result is that the engine sound can no longer be permanently deactivated. I start the EV6, set the engine sound to “off” in the menu “Setup-Vehicle-Motorsound” and drive silently there. If I turn off the car then and restart it the next time, the engine sound is back again. Is it possible for others here too? If yes, have you found a solution? I would be very grateful. VG, flensem