This is how ACF creates a new row. The index is a temporary unique id that is only used for the new row that will be replaced after updating. It is not a bug, but the way it’s made to work. Is it causing you an issue?
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Browse through ideas, snippets of code, questions and answers between fellow ACF users
Accordions are a great way to group related information while allowing users to interactively show and hide content. In this video, Damon Cook goes in-depth on how to create an accessible accordion block using ACF PRO’s Repeater field.https://t.co/RXT0g25akN