I am using your search function to sort custom post types by category (dev page here:). One of the categories is ‘number of people’ and the grouping is 1-50, 50-100, 100-200 and so on. The way the fields display on the front end check boxes is by the first number in the string, for example, 1-50, 100-200, 50-100. How can I get them to sort by their total value – as in 1-50, 50-100, 100-200?
Try changing the default term ordering option from ‘Name’ to ‘ID’: https://i.imgur.com/22RasTu.png
It will however affect all the term selectors.
Another possibility would be to manually choose the terms from that taxonomy instead of using the ‘Use all from..’ option: https://i.imgur.com/IwjUjPy.png
The ordering should stay as you order the selected terms.