Filter for current and future dated posts

Thanks for the plugin which is very useful. I have successfully created a sorted list of a particular category from a directory created with Web 2.0 directory plugin using the shortcode:

[display-posts post_type=”w2dc_listing” taxonomy=”w2dc-category” tax_term=”events” meta_key=”_content_field_12_date_start” orderby=”meta_value_num” order=”DESC”]

I am trying to get a filter working to show only future dated events and not past dated events by adapting one of the filters you have provided on your site:

———-
function be_dps_future_events( $args, $atts ) {

// Only run on directory queries
if( ‘w2dc_listing’ != $args[‘post_type’] )
return $args;

$args[‘order’] = ‘ASC’;
$args[‘orderby’] = ‘meta_value_num’;
$args[‘meta_key’] = ‘_content_field_12_date_start’;
$args[‘meta_type’] = ‘datetime’;

$args[‘meta_query’] = array(
array(
‘key’ => ‘_content_field_12_date_start’,
‘value’ => date( ‘dd-mm-yyyy H:i:s’, current_time( ‘timestamp’ ) ),
‘compare’ => ‘>’
) );

return $args;
}
add_filter( ‘display_posts_shortcode_args’, ‘be_dps_future_events’, 10, 2 );
—————————-

But my list which can be seen below the calendar on this page:

http://eflowriders.concisedigital.net/calendar-test/

Is still showing all the events in the category including those with a past start date.

Any idea why my future events filter is not working?