My site is in Greek, so all of the articles and pages are in Greek. The URLs are also in Greek (for SEO reasons). The site, pages, articles were already set up when I installed Bogo (development version > http://wordpress.org/support/topic/blank-dashboard-after-bogo-20-activation?replies=3). The only reason I installed Bogo was for me to be able to browse the Admin Dashboard in English, which works well.
Today I decided to edit a page but after I did so, I kept getting error 404 when trying to see the page. Needless to say that I didn't change it's URL, when editing the page, just the content.
After some troubleshooting, I decided to deactivate Bogo. When I updated the page again, after the deactivation of Bogo, the 404 error went away. A simple refresh on the same URL that was giving me the 404, fetched the page.
I don't know if this is a bug or a feature, but what I'd like to ask is: Do I need to have a version of the page for every language, in order to avoid 404 errors? Or am I missing something else?