Assume that you use Microsoft SQL Server 2014, SQL Server 2016, or SQL Server 2017 Analysis Services (SSAS). When you run a Multidimensional Expressions (MDX) query that refers to a calculated member, and when the referenced calculated member is a child member of another hierarchy in SQL Server, SSAS may crash.
This issue is fixed in the following 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:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminologythat Microsoft uses to describe software updates.