Having made my way through the first section of Christoff's mortal adventure and returned from the mines. I saved my game just before entering the city gates.
Later, I killed the first three revenants and headed into the next area, where I got distracted by the phone and got killed. Irritating right?
I load the previous save, only to find that the revenants are already dead, their corpses still go through the dialogue, but I can't kill them and so can't trigger the next event.
Any thoughts?

the link above about overwriting saved games...second post....had stuff that worked for me

Where is this Save Folder that you speak of... I'm running Windows 10 and I cannot figure out what location the game is saving to.
I've even uninstalled and re-installed hoping to delete the save folder and start over. I've unhidden all the files on my computer and named saved games something unique and conspicuous and searched the entire hard drive, yet it doesn't seem to show up.
I'm having the same issue, but I just cannot find the saved games to try your fix.

Incidentally the link to the thread in Paradoks' comment is dead.