Transitioning From One Trip Segment To The Next

Today as we were driving through beautiful Custer State Park in South Dakota I set up a route with two waypoints between our present location and our final destination. (I'll call the waypoints A and B.)

As we passed A and continued on toward B, I noticed that the 500c was still giving distance back to A and the color of the route both ahead and behind our present location was magenta. Puzzling!

Then I stopped to take a picture. When I began moving, I noticed that only the route ahead of us was magenta and the route behind us was the dotted trail—just what one would expect.

Conclusion: If you pass a waypoint without stopping, the software believes that you have not yet arrived at that waypoint and keeps navigating you to it, rather than to the next waypoint. It appears that when I stopped moving, it interpreted that as an arrival at the waypoint and then began navigating me to point B.

Another possibility is that I did not pass exactly over the first waypoint, so it did not consider me to have arrived.

If you can shed any light on this, please Comment!