我不认为这会发生。。。。

Is\\u admin（）检测管理UI而不是管理权限。。。尝试：

if (is_admin()) : 
function my_remove_meta_boxes()  { 
if( !current_user_can(\'manage_options\') )  { 
    remove_meta_box(...);
}}
add_action( \'admin_menu\', \'my_remove_meta_boxes\' );
endif;

请换衣服！is\\u admin（）当前用户是管理员，is\\u admin（）不是检查用户，但他们检查管理面板区域

请更改代码

 add_action(\'admin_head\', \'remove_metaboxes_for_non_admin\');
function remove_metaboxes_for_non_admin(){
    global $current_user;
    if ($current_user->role[0]!=\'administrator\')
    {
        remove_meta_box(\'wpseo_meta\', \'post\', \'advanced\');
        remove_meta_box(\'wpseo_meta\', \'page\', \'advanced\');
        remove_meta_box(\'wpseo_meta\', \'products\', \'advanced\');
        remove_meta_box(\'acf_acf_extended-footer\', \'post\', \'advanced\');
        remove_meta_box(\'acf_acf_extended-footer\', \'page\', \'advanced\');
        remove_meta_box(\'acf_acf_extended-footer\', \'products\', \'advanced\');
        remove_meta_box(\'acf_acf_layout-settings\', \'post\', \'advanced\');
        remove_meta_box(\'acf_acf_layout-settings\', \'page\', \'advanced\');
        remove_meta_box(\'acf_acf_layout-settings\', \'products\', \'advanced\');
        remove_meta_box(\'acf_acf_product-settings\', \'post\', \'advanced\');
        remove_meta_box(\'acf_acf_product-settings\', \'page\', \'advanced\');
        remove_meta_box(\'acf_acf_product-settings\', \'products\', \'advanced\');
        remove_meta_box(\'acf_acf_sidebar\', \'post\', \'advanced\');
        remove_meta_box(\'acf_acf_sidebar\', \'page\', \'advanced\');
        remove_meta_box(\'acf_acf_sidebar\', \'products\', \'advanced\');
        remove_meta_box(\'acf_acf_size-guide\', \'post\', \'advanced\');
        remove_meta_box(\'acf_acf_size-guide\', \'page\', \'advanced\');
        remove_meta_box(\'acf_acf_size-guide\', \'products\', \'advanced\');
        remove_meta_box(\'acf_acf_header-image-background\', \'post\', \'advanced\');
        remove_meta_box(\'acf_acf_header-image-background\', \'page\', \'advanced\');
        remove_meta_box(\'acf_acf_header-image-background\', \'products\', \'advanced\');
        remove_meta_box(\'acf_acf_footer-image-background\', \'post\', \'advanced\');
        remove_meta_box(\'acf_acf_footer-image-background\', \'page\', \'advanced\');
        remove_meta_box(\'acf_acf_footer-image-background\', \'products\', \'advanced\');
        remove_meta_box(\'acf_acf_extended-footer-image-background\', \'post\', \'advanced\');
        remove_meta_box(\'acf_acf_extended-footer-image-background\', \'page\', \'advanced\');
        remove_meta_box(\'acf_acf_extended-footer-image-background\', \'products\', \'advanced\');
        // continue adding as necessary
    }
}