Admin pages returns 404 when language set to secondary language

Hello,

I have built a multi-language site (english/french) and noticed that whenever I try to navigate to admin pages with my language set to french (default is english) then admin pages returns a 404 error. Since you can only change language on pages screen I have to log out and back in to reset.

If I switch to french language from within the page using the purple dropdown then I can continue editing the page and save it. As soon as I navigate back to the pages, then I get 404.

As soon as I added a second language this started happening. I cannot create new french pages nor can I navigate to admin pages while under french language.

Anyone have any suggestions or possible fixes?