Shapefile polygon holes in between Australian regions

[robertstrong10]

Description of the problem

Holes in the polygons between the CAU, EAU and SAU regions in Australia - issue located around (145.491,-32.908). Verified though QGIS and a geopandas spatial join which yield NULL regions.

To Reproduce

1. Download shapefile from https://github.com/SantanderMetGroup/ATLAS/blob/main/reference-regions/IPCC-WGI-reference-regions-v4_shapefile.zip\
2. Import into QGIS as vector

Expected behavior

Expect the Shapefile to have adjoining polygons with no NULL areas inside the wgs 84 epsg:4326 bounds.

Screenshots

Desktop (please complete the following information):

• OS: MacOS Ventura
• QGIS 3.22 LTR
• Python Geopandas