We searched for a destination in the app and were then presented with a choice of three different routes.

We selected a route and set off. At some point (we don’t know when), the app switched to one of the other routes without any notification.

When we realised this after a while, we drove manually in the direction of the white line of the route we had originally selected in order to get back to the chosen route.

When we reached the white line and wanted to continue along it, the app tried three times to deviate from the white line and use one of the other routes.

What did we do wrong??