@Steven-Farmwald, it looks to me that you imported the route and not the track into Maps. Like @Herko-ter-Horst pointed out: a navigation app decides it's own best way to get from waypoint to waypoint. I am not even sure Maps can navigate a track. Never tried, and to be honest I see no value in it. You will not only lose skip waypoint information, but also the segment information.
I don't suppose you want to navigate this route using Maps, do yo? If yes, there are many better alternatives (MyRoute-App Navigation being one of them).