Thank you to everyone who reported the save-related issues.

We believe we've finally identified the cause. All download links have now been updated, and we kindly ask you to download the game again and remove the previous version.

After installing the updated version, continue from your existing save. If you've already completed the latest update, simply load your most recent save and save the game again. This step is very important.

We hope this will permanently resolve the save issues. We sincerely apologize if these bugs forced you to start a new game. The issue turned out to be quite unusual, which made it extremely difficult to track down.