According to your description, in your product environment there are two servers which have the same SQL Server Analysis Services cube, the problem is that uses get different data when query data from the two servers, right?
The issue can be caused by that the process time on the two server are different. You can do a process full on both of the server and check the issue is persist or not. If the issue persist, you can configure synchronize two SSAS Servers. In SSAS, we
can synchronize two SSAS servers in order to have a failover server in case something goes wrong with one of the servers. Please refer to the link below to see the details. http://www.mssqltips.com/sqlservertip/2938/how-to-synchronize-two-ssas-servers/
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