Symptoms

Consider the following scenario:

  • You create a cube in Microsoft SQL Server 2016  and 2017 Analysis Services (SSAS) in Multidimensional mode.

  • You create a scoped assignment to one or more measures in the cube.

  • One of the measures is the default member of a hierarchy that has a custom rollup defined.

In this scenario, when you browse the cube in Microsoft SQL Server Management Studio (SSMS) and drill down the hierarchy members, you may receive an internal error message that resembles the following:

Internal error: An unexpected error occurred (file 'FileName.hpp', line LineNumber, function 'FunctionName'). (Microsoft SQL Server 2016 Analysis Services)

Resolution

This issue is fixed in the following cumulative updates for SQL Server:

        Cumulative Update 4 for SQL Server 2017

        Cumulative Update 7 for SQL Server 2016 SP1

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:

Latest cumulative update for SQL Server 2017

Latest cumulative update for SQL Server 2016

Status

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

References

Learn about the terminologythat Microsoft uses to describe software updates.

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