Sort by ACF field not working properly

• zsimaiof

• October 7, 2020 at 8:03 pm

Hi,
i am trying to sort by an ACF field which is (for the time being) an exact copy of the Title field :
It’s called acf_journaltitle_slug
I have a WP query that returns the results and renders them to DataTables.
When the WP query is sorted by title everything works fine (see attache image 2).
When i use

$args_journals = array(
        'post_type' => 'journal',
        'post_status' => 'publish',
        'posts_per_page' => $request['length'],
        'offset' => $request['start'],
        'order' => $request['order'][0]['dir'],
		'starts_with' => $rq_letter
		);
		
	
		
		if ($request['order'][0]['column'] == 0) {
			$args_journals['meta_key'] = 'acf_journaltitle_slug';
			$args_journals['orderby'] = 'meta_value';
			
			$args_journals['order'] = 'ASC';
			
			
			} elseif ($request['order'][0]['column'] == 1 ){
			
			$args_journals['orderby'] = 'title';
			//$args_journals['orderby'] = 'acf_journaltitle_slug';
			
			
			
		}

the results are ordered kind of randomly (see attached image 3)
Why does that happen??

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