Easy fix for this right now is to just play with steam in offline mode.
open steam
select "Steam" at the top and pick "Go Offline"
It'll ask you to restart steam, do so. Then start the game like normal and from then on your saves will override the old ones like they should. This might also fix the options resetting but I haven't tested it for that. I also don't know how it will handle achievements in offline mode. I haven't played long enough to get one as I wanted to fix this before I got too far into the game.
