Older Spanish beats English

Lucía has revised Lesson 3's Spanish Teach Book with a new file and saved it, but it isn't published yet. The English Lesson 3 Teach Book is published and up to date.

Spanish readers still get the Spanish version that was published before, not English. English stands in only where there's no published Spanish at all, and an older Spanish version is still Spanish.

Try it: compare the file name in the two columns.

So a Spanish version waiting to be published doesn't send Spanish readers to English in the meantime. They keep the last Spanish that was published, until the new one is.