I have a problem with moving my family. I asked my wife (Sylgja) to move from Breezehome to Heljarchen Hall. She did it but our kids - Sofie and Runa - didn't. I tried to reload previous saves, googled it and use mods (Hearthfire Moving Family Bugfix and Unofficial Hearthfire Patch - I have used them before and everything was fine).

I have all upgrades in the new house.

The bug seems to only occure on that character - all other are working great.