GrmonRCP consist of several different views to handle different aspects of the debbugging process. All open views are automatically refreshed when a command has finnished executing, but can also be refreshed manually by choosing "Actions → Refresh" or hitting the Refresh-button.
All views are available from "Window → Show Views". After a software update this menu will not automatically update. Select "Window → Reset Perspective" if a view isn't showing up in that list.
If many views are open the refreshing can be very slow if a slow interface is used. Try to close views that aren't need at the moment.