Assume that you upgrade Microsoft SQL Server 2014 Reporting Services (SSRS 2014) to SSRS 2016 and you have a report name that contains a bracket "(". When you access the report by using URL Access and turn off the Toolbar by using &rc:Toolbar=False, you will notice that the images within the report are not displayed.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
The issue is fixed in the following cumulative update for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all thehotfixes and all the security fixes that were included with the previouscumulative update. Check out the latest cumulative updates for SQL Server: