I’m not familiar with the area, but typically we’d also apply place=locality to the relation and include the node as a member of the relation with role label. This doesn’t seem to be done much in WA at the moment, but you can see for example one like that here Relation: ‪Laggan‬ (‪6074565‬) | OpenStreetMap.
The Western Australian Government announced on 3 July 2020 the renaming of the King Leopold Ranges to Wunaamin-Miliwundi Ranges . As part of that change, the renaming applied specifically to the mountain range, while the official locality boundary continued to be recorded as “King Leopold Ranges”.
Subsequently, on 11 February 2026, the locality previously known as King Leopold Ranges was formally renamed to “Bularl di Wunami” following completion of the official locality renaming process by the Western Australian Government.
Looks like it is not a simple wait a while and it will update.
Mapbox licenses data from numerous data providers globally. Our conflation engine validates, merges, normalizes, and enriches this data, and our data quality teams apply manual corrections to provide the most accurate information about a POI
Having a closer look I don’t think Mapbox is getting “King Leopold Ranges” from OSM. It returns this location OpenStreetMap, which is more than 150 km away from either OSM node and it’s only 600 m inside the locality boundary.