Again thank you John. This is a side project and I can’t dedicate a lot of time to it now, but soon I’m going to break down the entire code and start over.
You were right that even a greater priority causes the same issue. I’ve tried using something like the below too:
if(isset($_POST['acf']['field_6001b1b8a2cff']) ) {
$new_title = $_POST['acf']['field_6001b1b8a2cff'];
}
But even then it works only on the backend since the front end still thinks there is no “old” value. I’ll figure this out eventually and post my results.