Symptoms
When you run a Data Analysis Expressions (DAX) query in Microsoft SQL Server 2017 Analysis Services (SSAS), the SSAS process stops responding. When this problem occurs, you might have to restart SSAS manually.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Resolution
This problem 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:
References
Learn about the terminology that Microsoft uses to describe software updates.