FIX: Table values change after dividing and partitioning the table in SQL Server Analysis Services

Symptoms
Assume that you install the SQL Server Analysis Services (SSAS) in tabular mode on a server that is running Microsoft SQL Server 2014 or SQL Server 2012. After you divide a table into more than one logical part, and then you process the partitions, some data in the partitions is updated incorrectly. This causes tabular queries (DAX/MDX) to return corrupted or incorrect information. For example, some positive values in one or more table columns are changed to negative values.

Note This problem can occur in tabular partitions other than the partition that is being processed.
Resolution
The issue was first fixed in the following cumulative updates for SQL Server:

Cumulative Update 2 for SQL Server 2014 SP1

Cumulative Update 6 for SQL Server 2012 SP2

Cumulative Update 7 for SQL Server 2014

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:

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 terminology Microsoft uses to describe software updates.
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.
Properties

Article ID: 3051798 - Last Review: 08/25/2015 09:18:00 - Revision: 10.0

Microsoft SQL Server 2014 Business Intelligence, Microsoft SQL Server 2014 Developer, Microsoft SQL Server 2014 Enterprise, Microsoft SQL Server 2014 Express, Microsoft SQL Server 2014 Standard, Microsoft SQL Server 2014 Web, Microsoft SQL Server 2012 Service Pack 2, Microsoft SQL Server 2014 Service Pack 1

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