The game has made one autosave. Right before I enter Montbarron Estate. Literally two minutes into the game.
It was after I talked to him the first time. I defeated all of enemies in the area and then saved it, from there I'm supposed to chase him but I stopped playing. Two days later I load that save and there are roots blocking the way forward, and collapsed boardwalks the way back to wherever I came from.
I looked at a video walkthrough and those roots shouldn't be there.