Known Issues & Bugs

Know issues

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  • Automobile routing is not supported

Routing with vehicle=car is meant for racing bikes

  • Postal code search is not supported

  • Housenumbers are searchable if mapped on OSM; housenumbers in the Netherlands are extracted from the Dutch BAG dataset and almost complete.

  • Long distance routing is not possible

Use via points for shorter distances (sometimes even less than 20 km).

  • Bicycle routing is weird?

Don't select interstate / major highways avoidance

See also below

  • Maps are not visible on the device?

See the Installation an other topics in this tips & tricks section to read more about how to use the maps.

  • Route not aligned with the road network?

Align the compass (North Up) in View menu (Ctrl-N)


Route not aligned with the map?

Press Ctrl-N (or View->North Up)

Routing errors or unexpected long detours?

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Once in a while you will see that the GPS refuses to calculate a route, make long detours or just draw a straight line between the start and destination of a route. There can be several causes for this behaviour:

Settings in the GPS unit or Basecamp/Mapsource are not correct / optimal

    • Read the other Tips & Tricks sections to setup your GPS

    • Don't avoid highways/motorways

    • Don't activate multiple routable maps

Broken road network on Openstreetmap

    • The OSM database is changing a lot, the road network is improved but also editing errors are made

    • Report those errors in the "note" menu on openstreetmap.org or become a mapper and repair it by joining the osm community

    • Because of the many updates on osm, there can be differences between the OFM updates. So therefore it is important to use the same map version (=date) on the GPS as on the pc and recalculate old routes that were made with a previous version.

Routes are too long to calculate

    • Basecamp and Mapsource can calculate longer routes than the GPS. Dont make the route sections too large, 20 km between viapoints should be ok, >100km often not.

Car routing is not supported

    • The Openfietsmaps are not suitable for car navigation. Motorways and other roads that are blocked for cyclists are non routable.

Limited use for Walking/Hiking navigation

    • The maps are not optimal for walking/hiking. Some roads that are accesible for pedestrians but not for cyclists can be non routable (e.g. a motorway with a sidewalk). Some paths are not routable (bridleways).

Device transfer options (Basecamp 4.3.3. and later)

    • Dont select any option! Especially "Always match route to the map" can cause broken routing (straight lines) when selected.

Different OFM version on GPS and Basecamp

    • This will cause errors when making a route in Basecamp and transfer it to the GPS. After route calculation this can result in straight lines.

Route chaos: OFM version from Basecamp and GPS are not from the same date.