Assume that you have a Unified Dimensional Model (UDM) cube that contains a calculate measure in Microsoft SQL Server 2014 Analysis Services (SSAS 2014). The calculate measure refers to a non-existing tuple in a Multidimensional Expressions (MDX) query. When you try to create a "BI Semantic Model for Power View" in SharePoint against the UDM cube, the power view reports cannot be created and you receive the following error message:
Internal error: An unexpected exception occurred.
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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.