I have a saved search of last hour activity from our firewall and using the cluster map visualization plugin. When I create an alert for this search and enable attachment of PDF, it shows this weird plot. Why won't it show the geographical country map w/ the cluster bubbles?
Splunk's visualizations can only be included in PDF as far as I am aware.
You'll need to attach the results as PDF when the alert or report is triggered or scheduled.
I think splunk don't have this in built capability