I don't know if it is a failure...
If I configure a new SSID and set it to "Separat Zone" with a DHCP Server. Later i change the same SSID to "Bridge to AP LAN". After the publishing and reconnecting the Clients the IP-Address will not be renewed with the actual DHCP on the LAN. A deletion of the Connection on Client will also not fix this Problem. I have always an old IP.