Symptoms
When you drop a subscription by using an account that's not a member of the SQL Server sysadmin fixed server role in Microsoft SQL Server, although the subscription is dropped successfully, you may receive an error message that resembles the following:
The Subscriber was dropped.
Msg 0, Level 11, State 0, Line LineNumber
A severe error occurred on the current command. The results, if any, should be discarded
Resolution
This issue is fixed in the following cumulative updates for SQL Server:
Cumulative Update 6 for SQL Server 2016 RTM
Cumulative Update 3 for SQL Server 2016 SP1
Cumulative Update 5 for SQL Server 2014 SP2
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.