plugin_dir_url(__FILE__) searches parent theme in ACF extension

I’m a total dummy. Looked through the field file and found this:

function input_admin_enqueue_scripts()
{
    // Note: This function can be removed if not used


    // register acf scripts
    wp_register_script('acf-input-column', $this->settings['dir'] . 'js/input.js', array('acf-input'), $this->settings['version']);
    wp_register_style('acf-input-column', $this->settings['dir'] . 'css/input.css', array('acf-input'), $this->settings['version']);


    // scripts
    wp_enqueue_script(array(
        'acf-input-column',
    ));

    // styles
    wp_enqueue_style(array(
        'acf-input-column',
    ));

}

$settings->[‘dir’] was set to: get_template_directory_uri() . ‘/resources/acf-field-column/’

So that’s where the 404 files got included.