The function works fine, but the $my_account and $my_account_pages are not merging. Getting an empty array in $my_account after merge. Not before though. Thoughts?

get my account pages

function get_extendd_my_account_pages() {
		$all_wp_pages = wp_cache_get( 'extendd_my_account_pages' );
	    
		if ( false === $all_wp_pages ) {		
			// Set up the objects needed
			$the_query		= new WP_Query();
			$all_wp_pages	= $the_query->query( array( 'post_type' => 'page' ) );
			
			wp_cache_set( 'extendd_my_account_pages', $all_wp_pages );
	     }
		
		// Get the page as an Object
		$my_account 		= get_page_by_title( 'My Account' );
		
		// Filter through all pages and find Portfolio's children
		$my_account_pages 	= get_page_children( $my_account->ID, $all_wp_pages );
		
		$my_account_page_ids = $my_account->ID;
		if ( is_array( $my_account_pages ) ) {
			foreach ( $my_account_pages as $page ) {
				$my_account_page_ids .= ',' . $page->ID;
			}
		}
		
		$my_account_pages	= get_pages( array( 'include' => $my_account_page_ids, 'child_of' => 1 ) );
		
		return $my_account_pages;
}

Fixed it!