This behaviour of RouteConverter indicates that the routing algorithm did not found a valid route along legal streets at the orange part of the trip.
In high mountains this may e.g be caused by a street closure due do snow.
In rural areas it (mostly) indicates that one or more points are set too far from the real street. You may switch to satellite view and zoom into the map. Then mark line by line in the position list and compare the positions with the real street. Move points to the real street when they are off the street.
In some very few cases the (google maps) routing algorithm is faulty.
In high mountains this may e.g be caused by a street closure due do snow.
In rural areas it (mostly) indicates that one or more points are set too far from the real street. You may switch to satellite view and zoom into the map. Then mark line by line in the position list and compare the positions with the real street. Move points to the real street when they are off the street.
In some very few cases the (google maps) routing algorithm is faulty.
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Matthias
Matthias