Kibana shows empty pages

[iatalay]

Hi
We have install Elasticsearch and Kibana 7.11.1 on RHEL 8.3. (Also I tried RHEL 7.9 for Kibana).
We also have installed search-guard plugin.
Some of the pages on Kibana are empty, show nothing.
Tried firefox, chrome and edge, all same.
We have another environment V7.9.0 working without any issue.
Do you have any idea?

server.host: "HOSTNAME111"
server.port: 5601
elasticsearch.hosts: ["https://xxx:9200", "https://yyy:9200"]
elasticsearch.username: "admin"
elasticsearch.password: "password"
elasticsearch.requestTimeout: 300000

xpack.security.enabled: false

xpack.security.encryptionKey: "***********"
xpack.encryptedSavedObjects.encryptionKey: "***********"

elasticsearch.ssl.certificateAuthorities: "/etc/kibana/ssl/root-ca.pem"
server.ssl.enabled: true
server.ssl.key: "/etc/kibana/ssl/HOSTNAME111.key"
server.ssl.certificate: "/etc/kibana/ssl/HOSTNAME111.pem"

xpack.reporting.encryptionKey: "**********"

# Activate basic auth
searchguard.auth.type: "basicauth"
# Configure session management
searchguard.cookie.secure: true
searchguard.cookie.password: "**********"

[poff (Poff Poffenberger)]

Hey there!

If you remove the search guard plugin, are you able to load up the pages? I'm not sure if the issue is with kibana or the search guard plugin