Assume that you create a derived column in a SQL Server Integration Services (SSIS) package, and you add a valid derived column expression. In this situation, you may receive validation errors.
Note You may also experience this issue after you migrate an SSIS 2008 package to an SSIS 2012 package or later versions.
The issue was first fixed in the following cumulative updates of 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. We recommend that you download and install the latest cumulative updates for SQL Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.