Voice acting bug upon switching characters

When switching from one character to the other, there may be voicelines immediately after loading every time, as though a boss were just killed.

Specifically, one case for me is that when I switch from character A, who saved Alira in the bandits quest, to character B, who killed all and sided with eramir,
then switching from character A to B plays a voiceline as though Alira were just killed.