Ok, find answer. I call the menu trought Timeber Menu witch cause the break because menu is construct before the add_filter you use to add cart menu.
Try to fix this.
Hello @azralth
Timber don’t use the WordPress menu walker and the support for wp_nav_menu() is rather limited right now. They acknowledge that and they also have an open issue mentioning this plugin that you can check here.
Hope this get fixed in the near future.