Symptoms
Assume that you use a database with compatibility level set to 1200 in Microsoft SQL Server 2016 Analysis Service (SSAS 2016) tabular mode. When you process a table that has calculated columns or calculated tables, you may fail to save your modifications to the server and receive an error message that resembles the following:
"Failed to save modifications to the server. Error returned: 'An unexpected error occurred (file 'tmmdmodeltm.cpp', line LineNumber, function 'MDModelTM::CreateHierIterRequest')."
Resolution
This issue is fixed in the following cumulative update 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:Latest cumulative update for SQL Server 2016
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 terminologythat Microsoft uses to describe software updates.
