בעיה ביצירת אובייקט WP_Query מתוך מחלקה

משום מה יש בעיה ביצירת אובייקט WP_Query בתוך מחלקה, הדף נתען ריק כמו בשגיאת סיטקס. מחוץ למחלקה אין בעיה.
האם יש לכם מושג למה?

הקוד שלי(מתוך תוסף):

class Architect
	{
		private $content;
		private $side;
		
		function __construct()
		{
			$this->setAll();
			add_shortcode('architects-side', array( $this, 'getSide' ));
		}
		
		public function setAll()
		{
			global $wpdb, $post, $wp_query;
			
			$args_a = array(
				  'post_type' => 'post',
				  'posts_per_page' => -1,
				  /*'meta_key' => 'mycustomfield',*/
				  /*'meta_value' => 1,*/
				  'suppress_filters' => false
			);
			$the_query = new WP_Query( $args_a );
			
			if ( $the_query->have_posts() )
			{
				$architects_ = array();
				while ( $the_query->have_posts() )
				{
					$the_query->the_post();
					//the_title();
					//print print_r(get_field('project_architector', get_the_ID()));
					$architect = get_field('project_architector', get_the_ID());
					if( $architect["display_name"] )
					{
						$counter = array_key_exists($architect["display_name"], $architects_) ? $architects_[$architect["display_name"]]["counter"] + 1 : 1;
						$architects_[$architect["display_name"]] = array_merge(array("counter" => $counter),$architect);
					}
					
				}
				
				
				
				$this->side = "<div id=\"architects-accordion\" class=\"panel-group\">";
				$c = 1;
				foreach($architects_ as $architect_)
				{
					//$this->content_ = "555";
					$this->side .= "
					<div class=\"panel panel-warning\">
						<div class=\"panel-heading\">
							<div class=\"panel-title\">
								<a data-toggle=\"tab\" data-parent=\"#architects-accordion\" data-architect-id=\"".$architect_["ID"]."\" href=\"#architect-".$architect_["ID"]."-tab\">
									<span class=\"badge font-size-inherit\">".$c++."</span> ".$architect_["display_name"]."
								</a>
							</div>
						</div>
						<div style=\"height: 0px;\" aria-expanded=\"false\" id=\"architect-".$architect_["ID"]."-collapse\" class=\"architect-".$architect_["ID"]." panel-collapse collapse\" data-toggle=\"false\">
							<div class=\"panel\">
								<div class=\"panel-body\">
									<small class=\"text-danger\"><i class=\"fa fa-chevron-left\"></i> סך פרוייקטים: ".$architect_["counter"]."</small>
								</div>
							</div>
						</div>
					</div>
					";
				}
				$this->side .= "</div>";
				wp_reset_postdata();
			}
		}
		
		public function getSide()
		{
			return $this->side;
		}
	}
	
	$architect = new Architect();