Mapbox visual - Chorpleth (polygons) layer not showing

Hello

Hoping there are some users of the Mapbox visual who may be able to assist. 

I'm specifically having issues with the Choropleth layer not showing 

https://docs.mapbox.com/help/tutorials/power-bi-choropleth-map/

For whatever reason I cannot seem to bring up a tileset I've created after following the instructions listed in the linked mapbox page. It zooms to NSW so its getting the data but no success bringing up the Choropleths.

I've got this tileset https://studio.mapbox.com/tilesets/liampohalloran.19pf20wp 

which I've matched up against NSW  state electoral divisions in NSW Australia. I've inserted a dataset just with the electorates and I've made sure the column name (districtna) matches the name of the ID field in the mapbox tilset (districtna)

NSW State Electorate Data 

Mapbox provided an example dataset and the example works pefectly - not sure where I'm going wrong.

Thanks

Liam