@centrescene: Hello there,
Since you are using Custom type to display your team section on homepage it is not possible to randomize the team section posts on refresh as the homepage only takes the custom posts you have added on the customizer and not from the Les artistes page.
To do that you have to create your teams section contents as posts and then categorize them into a single category. Then on the Team section on the customizer select Type as Category and select that particular category. Then you will need to create a child theme and do a little changes to make the posts randomize on refresh.
Let me know if this helps you out!
Kind Regards,
Skandha
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