From your pin, router shows as Tasman Hwy > Acton Rd > Estate Drv & in: https://www.openstreetmap.org/directions?engine=fossgis_valhalla_car&route=-42.8334%2C147.4884%3B-42.8588%2C147.4974#map=14/-42.8464/147.4874. What do you consider to be correct?