So when I'm farming coins by doing the contracts method I sometimes get distracted and click on the training session, which makes the game crash. When I reopen it all the coins I got in that session disappear, even though the years I skipped are still counted.
After this I thought that if I returned to the main menu after farming a bit and reopened it it would save normally, but no, sometimes it doesn't save anything, sometimes it makes only some of the coins I gained disappear, but it never saves everything.
Did that happen to anyone? Does anyone know a guaranteed way to save the coins?