This issues was resolved in version 9.1.2: https://docs.splunk.com/Documentation/Splunk/9.1.2/ReleaseNotes/Fixedissues#Monitoring_Console_issues  ... View more

I am experiencing the exact same issue in our deployment after upgrading from 9.0.5 to 9.1.0.2.  Most of the visualisations fail to load, and "Indexing Rate" and "Concurrent Searches" only show "N/A".  The new "Splunk Assist" banner at the top of the Overview page also fails to load.  ... View more

@Sh4ne0 - Did you figure out what was causing these issues? I'm seeing the same messages in mongod.log now after changing to new certs.  ... View more