Assume that you use Microsoft SQL Server 2014 or 2016 Analysis Services (SSAS) in Multidimensional mode. When you run an MDX query that refers to parent-child dimensions, SSAS crashes.
This issue is fixed in the following cumulative updates for SQL Server:
Cumulative Update 5 for SQL Server 2014 Service Pack 2
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology Microsoft uses to describe software updates.