Hello,
I just tested it, it works fine on my end. Are you sure that don’t have any error in the browser console (F12 on chrome)?
You might have some custom code which would break the feature.
In order to isolate the issue, I would recommend clone your website on a development / staging environment using Duplicator, or your hosting backup solution. Then try to disable all your plugins one-by-one (at the exception of ACF Pro & ACF Extended) until you find which one cause the issue.
If the problem persists, try switch to the native WP Twenty Twenty Two theme, to make sure you don’t have any custom code in your theme which would break the feature.
You can read more about how to setup a favorable environment for debugging WordPress & ACF in our guide here.
Let me know if you found something.
Regards.
