User diagnosing reported Deadlocks from Spotlight Home page. When Diagnose option is selected, Spotlight shows the following error:
"An unexpected problem has occurred
List index out of bounds (-1)"
User the Show Details option:
From the Home page of Spotlight right-click on ‘Blocked Processes’, select ‘Show Details’ option and select ‘Deadlock’s option.
Issue fixed in the current release of Spotlight on SQL Server Enterprise. Latest version of Spotlight can be downloaded from here.