Are you playing in the browser? Browser deletes your data sometimes. That's why you should use Load => To File and keep the file somewhere safe.
Viewing post in My gameplay keeps resetting
Sorry I didn't see this! For a month I think it could have been a few weeks maybe, I played in browser then I downloaded the actual game. From then on I'd play it from the file for that year and it would load my saves. I guess something could have happened to my save file? But I don't really know how. I just know every time I'd get into it to try and get back to where I was in my previous save I would stop playing the game for some time (which is a few months to a year break) it just randomly resets everything and the next time I'd try and resume playing I lose my progress again. Honestly it could be an issue with my pc but it doesn't normally do that, especially with any of my other games.