This isn't an error, just an omission, though I feel safe to say that one small event conversation doesn't merit a topic, so...
From Blazing Sword, chapter 7, if Serra visits the southeastern most house with Hector in it.
Serra:
Excuse me! Is anyone home? An empty house... How dull!
(Serra leaves, Hector appears).
??? (Hector):
Whew... I thought she would find me for sure. She's been working for my brother in Bern. And now she's returned... Ahh...