Hier kun je de fouten zien:
https://tools.geofabrik.de/osmi/?view=pubtrans_routes&lon=4.51516&lat=51.83138&zoom=12&baselayer=Geofabrik%20Standard&opacity=0.83&overlays=ptv2_routes_invalid%2Cptv2_error_ways%2Cptv2_error_nodes