Symptoms
Assume that you run a Multidimensional Expressions (MDX) query in online analytical processing (OLAP) or tabular model in Microsoft SQL Server 2012 Analysis Services (SSAS 2012) or SQL Server 2014 Analysis Services (SSAS 2014). If the cache is not cleared after you run the previous query, the MDX query returns no result.
Resolution
The issue was first fixed in the following cumulative update of SQL Server.
Cumulative Update 3 for SQL Server 2012 SP2 /en-us/help/3002049
Cumulative Update 4 for SQL Server 2014 /en-us/help/2999197
Cumulative Update 12 for SQL Server 2012 SP1 /en-us/help/2991533
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:
Workaround
To work around this issue, clear the cache before you execute each query.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.