This issue occurs when you enable a query that reads committed snapshot isolation with clustered columnstore index (CCI).
This issue occurs because an undetected deadlock occurs in a lock, in mutex, and in the parallel query.
Cumulative update informationThe issue was first fixed in the following cumulative update for Microsoft SQL Server 2014:
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Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. We recommend that you download and install the latest cumulative update for SQL Server .
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.