posts-2-posts embedding post title of connected posts

Question

I'm trying to create a default title for all the posts that are created, the title is generated by a couple of things, such as the post fields.

I was able to write code for getting the post fields into the title, but I can't seem to figure a way out to get the posts-to-posts connected post's title into the title of the post that's being created. I tried to add the following code into a function that I already created..

$connected = new WP_Query( array(
    'connected_type' => 'posts_to_anime',
    'connected_items' => get_queried_object(),
    'nopaging' => true,
    ) );

    $animetitle;

    while ( $connected->have_posts() ) : $connected->the_post();

                    $animetitle = get_the_title();

        if (isset($animetitle)) {
            break;
        }   

    endwhile;

This was embedded into the following function, which works perfectly if the above code isn't present..

function my_acf_save_post( $post_id ) {
// vars
$episode_number = get_field('anime_episode_number' , $post_id );

if( $episode_number )
{
    remove_action('acf_save_post'   , 'my_acf_save_post'   , 20);

    $connected = new WP_Query( array(
    'connected_type' => 'posts_to_anime',
    'connected_items' => get_queried_object(),
    'nopaging' => true,
    ) );

    $animetitle;

    while ( $connected->have_posts() ) : $connected->the_post();

                    $animetitle = get_the_title();

        if (isset($animetitle)) {
            break;
        }   

    endwhile;

    $my_post = array();
    $my_post['ID'  ] = $post_id;
    $my_post['post_title'] = $animetitle." Online Episode ".$episode_number;
    $my_post['post_name'] = $animetitle."-online-episode-".$episode_number;

    wp_update_post( $my_post );
}
}

    // run before ACF saves the $_POST['fields'] data

    add_action('acf_save_post'   , 'my_acf_save_post'   , 20);

Now with the connected posts code added I get the following error

Warning: Could not find direction(s). in /home2/asdf/public_html/wp-content/plugins/posts-to-posts/core/query-post.php on line 16

Warning: Cannot modify header information - headers already sent by (output started at /home2/asdf/public_html/wp-content/plugins/posts-to-posts/core/query-post.php:16) in /home2/asdf/public_html/wp-includes/pluggable.php on line 876

I just want to figure out what is called by posts 2 posts or what not when the post is created. That way I could probably use that to grab the post title of the connected post and embed it into the post title of the post that's being created.