Add Comments to Custom Post Type PHP

Hi There.
I have created custom PHP files for displaying a custom post type (Venue)
single-venue.php
content-venue.php

However, when I view the custom post type, while everything is working as expected with the custom PHP that displays all the ACF fields etc, I'm not getting the Comments form appearing.

Comments are enabled in WP Settings and for the Posts.

All my custom coding ends before

<!-- After CONTENT -->

		<?php
		/**
		 * generate_after_entry_content hook.
		 *
		 * @since 0.1
		 *
		 * @hooked generate_footer_meta - 10
		 */
		do_action( 'generate_after_entry_content' );

		/**
		 * generate_after_content hook.
		 *
		 * @since 0.1
		 */
		do_action( 'generate_after_content' );
		?>

And the do_action( 'generate_after_content' ); hasn't been removed.

It's possibly something I have done wrong but I wondered if you could suggest any files I should take a look at?

Thanks.

Martin