Symptoms
Assume that you have Microsoft SQL Server Analysis Services (SSAS) installed in an instance of SQL Server 2017. You design a parameterized Data Analysis Expressions (DAX) prepare (<Content>Schema</Content>) query that's generated in the query designer of Report Builder in SQL Server Reporting Services (SSRS). When you run the query, you notice that the query fails.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Resolution
This issue is fixed in the following cumulative update for SQL Server:
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:
References
Learn about the terminology that Microsoft uses to describe software updates.