New phone - not detected as new

I got a new iPhone 17 and copied during the setup everything from my old iPhone 13. So far this was successful but now it looks like that Home Assistant is not recognizing the new phone as a new phone. Instead its using the sensor from the old phone. (always toggling the state of the BSSID and e.g. the battery charge)

In the companion app there are different names shown but I assume there are some internal IDs from the app installation.

Any idea how to fix this ? (except creating a new user)