Pagination for connected posts on single post template

I’m using Posts 2 Posts with The Events Calendar plugin. I’ve made a connection for events and posts. This way the site can display the Event details and blog posts about the upcoming event under it.

I modified single-event.php to show the Event details and connected posts below it. I want to paginate the posts. I have this code to show related posts on my event:

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$connected = new WP_Query( array(
  'connected_type' => 'posts_to_events',
  'connected_items' => get_queried_object(),
  'posts_per_page' => 5,
  'paged' => get_query_var( 'paged' ),
) );

Going to https://localhost/event/event-name/page/2 redirects me back to https://localhost/event/event-name/ so I can’t see more than the most recent connected posts.

I know the single post template is only meant to show the current post, so I’m not sure what I should do. Hope someone can give me a clue. Thanks