HI, I have a real life example with the same problem with a broken Sequence (thrown by an IllegalArgumentException during computeViterbiSequence): Sequence is broken for submitted track at time step 1 (3 points). observation:52.702572,13.552384,NaN, 3014988, 2 candidates: [distance: 14.56955396240139 to 52.702529698695564,13.552179345610295,NaN, distance: 14.56955396240139 to 52.702529698695564,13.552179345610295,NaN]. If a match is expected consider increasing max_visited_nodes.
incresing max_visited_nodes or gps accuracy has also no effect.
I using germany-latest.osm.pbf from geofabrik and version 0.9.0
here is my .gpx file(it works only when you delete the first point):
A11_3pos.gpx (596 Bytes)