so basically I discovered these issues as we have a list of blog posts and we noticed some italian and spanish posts listed between the english ones (should not happen)
and I was really starting to think there is a bug in the code, but after looking closely, these translations were somehow duplicated also on the English language
you see here the English post "Trust, Transparency, Together: Highlights from Day 1 of the Nextcloud Conference" it is already translated in italian and spanish
but the same spanish translation was duplicated somehow automatically and added as "english" post like you see in the next screenshot
"Confianza, transparencia, juntos: Lo más destacado del primer día de la Conferencia Nextcloud" should be actually only the translation of that original post, and not be shown as an english post itself.....