Why does the Banner says "Loading" on certain pages (such as /en-GB/manager/launcher/apps/local)?

[althomas]

When on certain pages, my search head says "Loading" and this never goes away. This also causes weird behaviour and javascript errors when viewing certain Splunk administrative pages, such as App installation or LDAP settings.

Looking into the code, I find the following:

    <script type="text/javascript">
    //<![CDATA[
        
            this.messenger = Splunk.Messenger.System.getInstance();
            // a misconfigured hierarchy can often derail the module loading, so the 'Loading' string can get stuck there.
            $("#loading").hide();
             //]]>
    </script>

It says: "a misconfigured hierarchy can often derail the module loading, so the 'Loading' string can get stuck there."

What does this mean? How can I see what is the misconfiguration in the hierarchy? What can I look at to see failed module loading?

I'm sure that there is a Splunk app that is causing this but, short of trial and error, I am unsure on what could be causing this.

Any help would be very useful!

Thanks!