Could you upload the family to the gallery and test them in a new save ?
OK so starting a new save with the family as a gallery import causes a couple of things to happen that could account for this behavior, first and foremost it clears the existing family recipes on the host sim, secondly it clears the notification dialogue as well that was preventing Family Recipes from being shared on the other save, and finally it seems to "unlock" some family touches to recipes that weren't unlocked before by that sim/family. It also undoes their dynasty connection entirely; so the import cleared a lot of data that was effectively involved.
The Sims Team
