Kibana Integration Monitoring over server.publicBaseUrl

Good morning everbody

I wondering if someone has experience with Monitoring Kibana over the Elasticsearch integration.
We replaced the deprecated xpack monitoring and switched all to the new integration monitoring.
This is working so far expect kibana.
In kibana I have the problem that we use the server.publicBaseUrl for two kibana instances. So the kibana api just work with kibana_hanswurstgmb_intern_com over port 443. In the integration I have to define who to access kibana. If i want to access second kibana instance, i get conection refused. If I just monitor over the server.publicBaseUrl I just got the logs from the first kibana server or the second if the first not running.
Have anyone an idea to solve this?

Thanks in advance