The list of high impact tasks is too long and doesn't appear to have a scroll option

When I add a new task in the week view and then use the detail properties pane to align it to an objective and high-impact task, the high-impact task list includes tasks related to *all* objectives rather than just the selected objective.  This makes the high-impact tasks list too long to display on the screen and there doesn't appear to be a way to scroll the list to get to the specific task I wish to select.  Here's picture where you can see for the "Review NIST recommendation" task, I've selected "Define data encryption" as the objective, but the list of High-Impact Tasks still shows all of my tasks and scrolls off the bottom of the screen.