Route Resolve Error - ArgumentOutOfRangeException

[johnjore]

Occasionally this happens:

RouterPoint rp = router.Resolve(profile, new Itinero.LocalGeo.Coordinate((float)cLocation.Latitude, (float)cLocation.Longitude));

System.ArgumentOutOfRangeException: Offset and length were out of bounds for the array or count is greater than the number of elements from index to the end of the source collection. (Parameter 'count')
at Itinero.Result`1[[Itinero.RouterPoint, Itinero, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]].get_Value()

Bug in resolve?