By "path" I mean the line I want my route to go:
I have an imported a track file into an empty list. It imports to Basecamp without any error. It displays properly in Basecamp. If I convert it to a route, that also works correctly and shows it is taking the desired path. If I double click on the TRACK, I get the track points, 832 of them. If I double click on the ROUTE that was built from the track, it lists 2 via point names, the start and finish. The route box shows no other track points, and I see no shaping points. But, if I recalculate the this resultant route, it's path remains the same as it was originally built (the long way), which is correct and the desired behavior.
If I load this route onto my Nuvi 1490, the Nuvi will recalculate the route going the straightest way and NOT follow the desired path.
In the List where I have imported this track and done the conversion to the route, I tried deleting everything except the route in that list. Recalc in Basecamp, it still shows the correct path being taken. Export to the Nuvi, no dice, still calculates the shortest path between start and end waypoints.
Any way to fix that behavior?
Happy to share sample files. The original track came from a KMZ file out of Google Maps. Also tried KML.