@Jörgen the white line is supposed to be a "track" of the "original route",
I think the idea is so that when your route (blue line) on your device deviates from the planned path (because of recalculation or other factor) the "original route" (white line) allows you to easily see original planned path & where you should be
The issue @Aiello-antonino & I am describing has nothing do do with maps, overlay or otherwise,
it is purely down to the fact that when try to start navigating a route offline the "original route" is not always calculated correctly/accurately enough so that it matches the path of the roads
I believe it is because sometimes when the file is synchronized, in the name of efficiency, less points are used to represent the "original route"
If you plan a route with the Tomtom routing, then the path of the track associated with this route would naturally follow the roads in the Tomtom map
I would then expect when you show the Tomtom "original route" in the navigation app with the Here map, there would could be small differences, these differences would be differences between the Here & Tomtom maps
[image: 1753301598932-959bd576-0857-42bf-b6b6-f910e66f45d6-image.png]