As others have pointed out, this is far from a new issue. Even with the "recent" fertility changes (which happened back in 2016, so they've affected both the 2016­–17 event season and the 2017–18 event season), fertility in general having no effect on holiday breeding, as well as successful holiday pairings potentially refusing outside of holiday breeding season have been the "norm" for years.   Despite this, it's definitely not an intuitive set of interactions, so the following change