PRB: RML Utilities - Reporter errors during report rendering
Summary
On a sporadic basis you may encounter any one of the following errors while rendering reports in Reporter:
Index was outside the bounds of the array.
Object reference not set to an instance of an object.
Fix
The following Reporting Services hotfix resolves this issue:
https://support.microsoft.com/kb/959595
More Information
Install the hotifx on the machine where you run Reporter.
Sarah Henwood | Microsoft SQL Server Escalation Services