Uninstalled game, deleted everything in %appdata% folder and reinstalled game through steam, I was able to reproduce on 7th game make.
Thanks for dealing with this very un-gamebraking bug, just my play style to have no colonist killed in game statistics
https://imgur.com/gallery/eEitHgt
Edit: Now i cant reproduce it after 20+ games.
The only thing I notice is when there is a normal game, storyWatcher doesnt even have a colonistsKilled section in the save file, so I guess it just comes down to whats causing the storyWatcher to set <colonistsKilled>1</colonistsKilled> at start of game
Thanks for dealing with this very un-gamebraking bug, just my play style to have no colonist killed in game statistics

https://imgur.com/gallery/eEitHgt
Edit: Now i cant reproduce it after 20+ games.
The only thing I notice is when there is a normal game, storyWatcher doesnt even have a colonistsKilled section in the save file, so I guess it just comes down to whats causing the storyWatcher to set <colonistsKilled>1</colonistsKilled> at start of game