Adjusted Beaver Builder single.php theme file to display custom posts types.

single-distributors.php

<?php
/*
Template Name: Distributors
*/
?>

<?php get_header(); ?>

<div class="container">
	<div class="row">
		
		<?php FLTheme::sidebar('left'); ?>
		
		<div class="fl-content <?php FLTheme::content_class(); ?>">
			<?php if(have_posts()) : while(have_posts()) : the_post(); ?>
				<?php get_template_part('content', 'distributors'); ?>
			<?php endwhile; endif; ?>
		</div>
		
		<?php FLTheme::sidebar('right'); ?>
		
	</div>
</div>

<?php get_footer(); ?>

Instructions: change line 16 : and insert the name of your-custom-post-type