Hello,
I have the same problem. The default language of my site is Spanish and the second one is English.
When you choose to see the site in English and click on the categories the site shows a 404 “nothing found” screen even though I have several articles in English.
The menus in the Spanish version of the site work fine.
I erased and created the categories from scratch and still the same. Is there a way to fix this issue?
Thanks.