Is the integration between highmaps and google sheets not working?
It seems to have broken on a map I've been working on and in the process of debugging I can't seem to find one that is working. For example heading to this page: https://www.highcharts.com/maps/demo/data-class-two-ranges (or on the jsfiddle linked from that page)
it simply shows "Loading data from Google Spreadsheets"
It's not working. There is an open ticket on the github here.
https://github.com/highcharts/highcharts/issues/8202