Symptoms
Assume that you create a SQL Server Integration Services project package by using SQL Server Data Tools in Visual Studio 2015. When you set the value of the AutoAdjustBufferSize property to True, the buffer size is not set correctly when the data flow engine handles blob data. Therefore, the package may run more slowly than expected.
Resolution
The fix for this issue is included in the following cumulative update for SQL Server:
Cumulative Update 1 for SQL Server 2016
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:
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 terminology that Microsoft uses to describe software updates.