Assume that you use Microsoft SQL Server Integration Services (SSIS). When you run a Multidimensional Expression (MDX) query by using Microsoft Excel XIRR function from SSIS, you may notice that the IsError function fails to detect the error in Excel XIRR function.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
This issue is fixed in the following cumulative updates for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server: