We use ACF with WP Code auto insert. ACF has prepend and append (in presentation tab) and this can be used to wrap the value with classes or other tags such as IDs, JS or others. When the ACF name changed, the prepend and append broke because prepend/append text showing must be configured in functions.php like this:

add_filter('acf/format_value/name=mysnippet1', 'mysnippet1acf', 20, 3);

function mysnippet1acf ($value, $post_id, $field) {

   if(!empty($value)){

  $value = trim($field['prepend'].''.$value.''.$field['append']);

   }else{

  $value='';

 }

 return $value;

}

Long story short, if you are using ACF with advanced features, including logic and presentation, this hostile takeover breaks it.

Doesn't even matter if you use prepend/append for the fields, our logic-based ACF fields are also broken.