Most SSRS reports will stop showing data from January 2011 on Refresh 3, 3.5 and 4
This because the Time dimension of the AX analysis services extensions is currently set from December 31, 1999 to December 31, 2010.
To avoid this you need to bind the Time dimension Source property of the AX analysis services extensions to an appropriate later date. To accomplish this, follow these simple instructions:
Updating time dimension of AX Analysis services extension - Refresh 3, 3.5 and 4
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