${authBaseUrl} identical to ${authAdminUrl}?

Hello community,

We are runnning keycloak 23.0.6 behind an nginx-reverse proxy in edge mode.

http-port is 8080.

Nginx is listening on 443 and 9000.
The following variables are set:

–start-dev
–hostname-url=https://keycloak.domain.com/
–hostname-port=443
–hostname-admin-url=https://keycloak.domain.com:9000/
–proxy=edge

We can login to the Master-Realm just fine and add new realms etc.

However the home-URL for Clients is wrong.
By default keycloak uses

${authBaseUrl} - for normal Connections and
${authAdminUrl} - for accessing the admin console.

But for some reason, they both contain the URL WITH Port 9000…

Is this a bug or is our configuration faulty somehow?

Any advice on the subject would be appreciated.

With kind regards
Ollowain