Pc version game setting

Pc version game options after logging out they reset to normal from creative mode, with new game after save day one. Version 0.90.10
I came back and noticed I Failed to reiterate on the topic. I played the game for a few hours then logged out, when I logged back in the game a reverted back to normal mode and animals were aggressive and killed me. I had the settings Creative/Passive/Permadeath Off