I decided to play the whole trilogy, importing saves along the way. It went fine until I finished 2nd (The Assassins of Kings) game and decided to import it into the 3rd game (Wild Hunt). Now the last save and auto save are both before I encountered Letho in Epilogue. And the game finished after these saves without giving me a chance to save my decision of leaving Letho alive.
Is there a way to fix it and transfer my choice to Wild Hunt?