So, I created a new character after I bought Hearthfire.

Saved up the cash, built myself the house near Falkreath, married Ysolda, moved in, life is awesome.

On day, when returning home (around level 15ish), I was approached by a bandit, who informed me wife had been kidnapped and was being ransomed. I went to the location fully intending to pay this ransom with my mace, however many split bandit skulls later, their hideout was clear, but no sign of Ysolda.

Not knowing what else to do, I went home. And who was standing by the Apiary? Ysolda! But something was different. For starters, he pathing is completely wrong; she is now pigeon toed and often becomes stuck on the ground outside. If she's not doing that, she's walking completely normally, but backwards!

This happens inside and out of the house. I'm willing to chalk this up to a bug, but 30 levels later, this still happens.