Post Title & Name snippet changing Publish to Review

I have a CPT “Company.” It only uses custom fields, no title or content.

Due to no title, I need my frontend submission form to create it from a field. I’m using the following code snippet:

function iswp_update_company_title( $data )
{
  if($data['post_type'] == 'company' ) { // Check post type
    $title = $_POST['company-name'];
    $slug = sanitize_title_with_dashes ($title,'','save');
    $slugsan = sanitize_title($slug);
    $data['post_title'] = $title ; //Updates the post title to your new title.
    $data['post_name'] = $slugsan; //Updates the post name aka slug to sanitized version of title.
  }
  return $data; // Returns the modified data.
}
add_filter( 'wp_insert_post_data' , 'iswp_update_company_title');

This works fine on the front end submission. If I go into the admin area to update a company, it also seems to work fine.

However, if I create a new Company from the admin area, the Publish button changes to Submit for Review and I see the warning “You are currently editing the page that shows your latest posts.”

What do I have wrong?