This happened to me as well once it was updated.
I also have the GOG version installed through Galaxy. Note that the changelog does not even say anything about today's update! When I reverted to the previous verson, the voices work again. This means you need to turn off auto-update for the game, though.
PS. I realised just after posting that you're aware of the issue, but I'll leave my post here anyway.
Last edited by Hoarmurath; 21/06/19 09:41 PM.
