i think you have to marry a violetchi to a sukatchi and not vice versa to get a pure family. this happened to me too while i was trying to raise a meme family but i dont know why they turned into memepapatchi and mememamatchi.
u can only get violet family by raising the violetchi yourself its so annoying bandai shud let u get a pure family backwards like chantochi to mametchi equals mame family! :furawatchi: