KB3008416 - FIX: Duplicate records in the report rendering when you use Lookup function in the expression of a matrix in SSRS 2012 or SSRS 2014


Assume that you use Microsoft SQL Server 2012 Reporting Services (SSRS 2012) Service Pack 1 (SP1) Cumulative Update 8 (CU8) or a later version. When you build a matrix with text box and use the Lookup function in its expression, duplicate records occur in the report rendering.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.