Consider the following scenario:
You use SQL Server 2014 or 2016 Reporting Services (SSRS).
You open a report that contains a parameter combo box.
The parameter entries are too long to be fully displayed in the combo box.
In this scenario, the resize handle is missing from the lower-right corner of the combo box.
Note This issue typically occurs only when you open the report in Internet Explorer. It may not occur when you open the report in Microsoft Edge or other browsers.
This issue is fixed in the following cumulative updates for SQL Server:
Cumulative Update 5 for SQL Server 2016 RTM
About 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.
Learn about the terminology that Microsoft uses to describe software updates.