What if the swicher disappears after jumping to other languages? The reason may be that a field in the metafield that decides to enable or disable switcher was translated by mistake. Kindly delete the translation and save then the swicher will appear in your shop.  Note: Here to know how to [add language swicher](https://localiseradmin.uppercommerce.com/help/article/16 "add language swicher").
Etranslate
Translate your store into multi languages
Etranslate
Translate your store into multi languages