^They probably had to retcon it back in after https://starwars.fandom.com/wiki/Queen%27s_Shadow
Implicitly stated that Padme's sister, Sola, only had one child named Ryoo.
So, now, in canon we have to get a guidebook retcon of a book. Thus we now have Padme and Sola having some unknown and totally absent sibling, (presumably dead?, or left their kid with their parents for some unknown reason) which never gets explained in the books.
Sorry, that's still just as bad imho. Sounds like a book messed up and no editor or story group member caught it... so now we get some crazy patch that creates it's own continuity problems to fix it.
Honestly, they should just retcon the book, or reprint it with the correct lore. Legends had it simple and right in this case, Sola had two daughters.