Had a whole series download correctly, except for one episode. That seemed suspicious, so I went to manually download that single ep.
Turns out, Sonarr was throwing the "English is wanted, but found " flag, so the episode wasn’t downloaded.
But the thing is, the episode wasn’t in a foreign language—it’s just that the title of the episode included the name of a language.
Don’t suppose Sonarr’s behaviour could be changed to mitigate against this…?