If you encounter errors or odd behaviors in visible searches / charts of a Layer8Insight Splunk dashboard, it is recommended to click the checkbox labeled "Enable Debug" under the "Dashboard Tools" slider in the bottom right of the dashboard. Clicking this checkbox will reveal the global / background searches inside of table elements in the dashboard.
All of the dashboards in the application rely on global / background searches that feed into second-level / post-processing searches. The latter elements are most often the results / elements you see. Errors in the latter often means there are errors in the base / global searches, so this checkbox is intended to help you determine if that is the case when reporting problems.