I am using NextJs and ui18n to make it international my webpage. My page starts with en-US on my language combobox, first time when I open my page it's open like in the picture.

    defaultLocale: "en-US",
    localeDetection: true

I also have these specification on my nextconfig.js file. When I select another language it changes correctly like "http://localhost:3000/en-AU" yet if re-select en-US it turns back to "localhost:3000/" again. How can I make my url "localhost:3000/en-US" at start or after I reselect en-US option