Not creating paths with locales as intended

[pelcasandra]

Whenever I call a path like users_path(locale: 'en') the result is always like /users/?locale=en and not /en/users.

My routes.rb is:

Rails
  .application
  .routes
  .draw do
    mount SolidusPaypalCommercePlatform::Engine,
          at: '/solidus_paypal_commerce_platform'
    filter :locale
    mount Spree::Core::Engine, at: '/'

  end

I can manually type in /en/users and it loads in the appropriate locale passed but I have no way to link to the correct paths with the locale prefix.

Another issue I'm having is that I can have a previously set locale and still be able to navigate using the naked paths with no locales passed (i.e. /users). I can still navigate in the previous locale instead of switching to a default locale (i.e. english). I'm not sure if this is the intended use of the gem or it is a bug, but I believe having multiple locales on the same url will confuse the locality of google crawlers.