Is it possibly a bug that a family can just die out after 4 generations? I've got 2 people from a 4th generation house that refuse to even TRY to make a baby. I'm getting the *too soon* message even though there has been no attempt at having children. It seems like a lot of work to get this far just to have them die out. I've got a maybe Father and a definitely Mother. They have been together since in their 20s but are now both in their 40s.

We will definitely have a look at this. A couple should not say it's "too soon" if they've never even tried.