i am late but you can also try something like this (with type):
function disable_acf_load_field( $field ) {
$field['disabled'] = true;
return $field;
}
add_filter('acf/load_field/type=text', 'disable_acf_load_field');
or try to inspect $field array name with matches of your fields like:
function disable_acf_load_field( $field ) {
$fields = "project_code","project_type","project_status","funding_year" // add more here
if(in_array($field["name"],$fields)) $field['disabled'] = true;
return $field;
}
add_filter('acf/load_field/type=text', 'disable_acf_load_field');