Not completely sure I understand what you are referring to. I’m assuming you mean repeater field rows. But do you mean the number that displays for each row on the left side. These seem to be updating when I both add and remove rows in the middle of the pack.
Can you provide some screen grabs to show what you’re seeing?
Welcome to the Advanced Custom Fields community forum.
Browse through ideas, snippets of code, questions and answers between fellow ACF users