Error setting up the menu in wordpress

hi @vmaxs

I checked docs:

https://developer.wordpress.org/reference/hooks/wp_nav_menu_item_custom_fields/

and source:

=$ grep -r wp_nav_menu_item_custom_fields
includes/class-walker-nav-menu-edit.php:                                do_action( 'wp_nav_menu_item_custom_fields', $item_id, $menu_item, $depth, $args, $current_object_id );

And I did not found action call with 4 params.

But I added defaults to avoid this isseu.

Could you update to 1.4.2 and re-check?

Marcin