Finally got this one solved. In my case, I was enhancing the WooCommerce Quick View Pro plugin. That plugin does not create a modal until AFTER the DOM has been rendered. However, the ACF jQuery file is loaded in the DOM before the modal is created. The solution for Quick View Pro is to load that jQuery after we generate the HTML.
I solved this by including the jQuery, e.g., after the ACF div containers were rendered. Here’s an example:
P.S. The link to my test site changed to https://wp.battlestardigital.com/quick-view-pro-test-page/
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