There was a typo, here is the fixed version:

//Redirect WPUF Version: 2.2.6
function wpuf_force_redirection($response, $post_id) {
 
        $post_type = get_post_type($post_id);
       
        if($post_type == 'type1'){
   
        //get parent post
        $related_id = get_post_meta($post_id, 'related_id', true);
       
        //If parent found, update $response
        if ($related_id) {
                //Update Response Vars
                $response['redirect_to'] = get_permalink($related_id);
        }
       
    }elseif($post_type == 'type2'){
   
        //Update response to new post url
        $response['redirect_to'] = get_permalink($post_id);
       
    }
    return $response;
}
add_filter('wpuf_add_post_redirect', 'wpuf_force_redirection', 10, 2); //10: priority, 2: accepted vars
add_filter('wpuf_update_post_redirect', 'wpuf_force_redirection', 10, 2);

I was thinking you could add this to the documentation. There are examples for the other filters, but not redirection. You could add this as an example to help out users.

Note: The dashboard pages are “sub” pages. This may be why they are not working correctly.

marketplace-dashboard
marketplace-dashboard/orders

Here is a video that shows what is happening.

1) When I save a product, the paragraph formatting is lost.

2) When I browse orders the pagination does’t work.

https://www.dropbox.com/s/9x0mncy2vum2ruo/festytribe-dokan.mov

I figured it out.

You need to change line 65 in header.php

'menu' => 'top',