This link (https://trakt.tv/people/yuka-hirata) for an actor who has appeared in multiple shows and films gives me a 404 Page Not Found when I click on it. This is the only link I’ve had this experience with.
That page is OK right now.
One of her credits was marked as ‘Adult’ on TMDB and because of that, her page was marked as ‘Adult’ there and that means it gets hidden here.
That has been fixed now.