In this demo, map only has one geojson object - a mask, which is not being detected for setting coordinates correctly. I suspect the same will fail if the polygon was not inverted, but instead just had a valid small region somewhere.
<mapframe width="650" height="400" mode="interactive" show="poi">{ "type": "FeatureCollection", "features": [ { "type": "Feature", "properties": {}, "geometry": { "type": "Polygon", "coordinates": [ [[3600,-180],[3600,180],[-3600,180],[-3600,-180],[3600,-180]], [[-122.4267,37.8081],[-122.4265,37.8082],[-122.4264,37.8077],[-122.4260,37.8072],[-122.4251,37.8068] ...