Route changes and displayed "Route"

I’ve noticed that when an aircraft changes routing mid-flight, the blue-dashed-line (prediction?) in the display will change, but the right-hand-side Route listing doesn’t. How does that work? Is the changed route available via FlightXML?

The textual route can and does change until departure. We don’t accept textual route changes after departure since they’re incomplete.

The waypoints line on the map is updated in full throughout the flight as reroutes occur.