Hello! Okay, so the saved file seems to be corrupt. Obviously we don't have the source code, so we can't see exactly why/what, but when opening the file in notepad, the code cuts off at the end with ...smatch_count":0}},"was":{"restarte — and that's it. This is in v.2.2.2 and v.0.2.3.

Also, when I started a new game, waited until 12am for the daily profit roll, and then exited, it seemed to save my game. But we have to delete the original file in order for it to do so. And now, just to be safe, I have to copy and save that file somewhere as a backup each time, just in case it disappears again. I can't recover the old file with my progress which I lost initially.
Can I email a zip file with my copy of the save files and game data over to you, so that you can take a look? Maybe that will help with finding the issue? Thanks again for all your help so far! :)