Elementor Loop grid custom field is value not working

I have created ACF field group (areas) and assigned field featured-areas as true/false. when selecting advanced qery options “Custom Field Value” and inserted field name: featured-areas with field value true, the loop grid still does not only show areas with the check box ticked. I’ve tried changing the field type to numbers or select from list, but still no joy.
I noticed “No support for checkboxes yet”, but since I’ve tried changing the filed to text, lists etc, and the query still does not filter only areas loop with value – can you please let me know how I can achive this?

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