Custom widget field values missing from Page Builder layout

Hi Alex – It is a completely custom widget, using the WP_Widget class.

<?php

	// Test Custom Widget
	class sales_widget extends WP_Widget {
		function __construct() {
		parent::__construct(
		// Base ID of your widget
		'sales_widget',
		// Widget name will appear in UI
		__('Custom Sales Widget', 'sales_widget_domain'),
		// Widget description
		array( 'description' => __( 'Displays the sales button', 'sales_widget_domain' ), )
		);
	}

	// Create widget front-end
	public function widget( $args, $instance ) {
	$title = apply_filters( 'widget_title', $instance['title'] );
	// before and after widget arguments are defined by themes
	echo $args['before_widget'];
	if ( ! empty( $title ) )
	echo $args['before_title'] . $title . $args['after_title'];

	// Run the code and display the output
	echo '
	<div class="box_cta">
		<h2>'. get_field('cta_title', 'widget_' . $args['widget_id']) .'</h2>
		<p><a href="#" class="cta cta_big">'. get_field('cta_button_text', 'widget_' . $args['widget_id']) .'<i class="fa fa-chevron-right"></i></a></p>
	</div>
	';

	echo $args['after_widget'];
	}
		
	// Widget Backend 
	public function form( $instance ) {
		if (isset($instance[ 'title' ])) {
			$title = $instance[ 'title' ];
	}
	else {
		$title = __( 'New title', 'sales_widget_domain' );
	}
	// Widget admin form
	?>
	<p>
		<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label> 
		<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />
	</p>
	<?php 
	}
	
	// Updating widget replacing old instances with new
	public function update( $new_instance, $old_instance ) {
		$instance = array();
		$instance['title'] = ( ! empty( $new_instance['title'] ) ) ? strip_tags( $new_instance['title'] ) : '';
		return $instance;
	}
	} // Class sales_widget ends here

	// Register and load the widget
	function sales_load_widget() {
		register_widget( 'sales_widget' );
	}
	add_action( 'widgets_init', 'sales_load_widget' );
	
?>

No unfortunately, nothing inputted to the custom widget via the layout builder is outputted on the frontend.

The ACF widget fields show ok within the layout builder in wp-admin, but do not save their values. On saving the page, they appear blank again.

I’ve read a few other similar threads on both the SiteOrigin & ACF forums and have yet to find any robust solution.

Perhaps I need to rethink my approach here – integration between these two plugins would be great in the future though.