Hello I've created a Jira for this [1]: When the datagrid is created it has the vertical scrollbar. When you either change the state of the component where the datagrid is created the scrollbar disappears. Also in a new calloutbutton container the first open (so when the grid is created) it has the scrollbar and then on a reopen it is gone. The container of the scrollbar is there, but the thumb is gone.
Tested the application on 4.9.1 and the problem was gone. I have uploaded a sample project. [1] https://issues.apache.org/jira/browse/FLEX-33678 Regards, SWEN VAN ZANTEN Hoofdstraat 160 2171 BL, Sassenheim
