As I understand it, save files are used for saving the game (sorry for the silly question)? Crashes are a constant problem; I've been experiencing this since the beginning (as described in the "Game Crashes" section), and I started playing around mid-January, when patch 1.2 was released, so I can't link it to that patch. The game has two types of saves: automatic "daily" saves and "manual" saves, meaning you can save at any convenient time. To be honest, I haven't been deliberately saving to check if points are lost, simply because I think the auto-saves should perform the same function. But that's not the case – everything in the game (hero points, achievements, results, etc.) is saved correctly, but dynasty points are not. Sometimes, you get engrossed in the game, especially towards the end of a mission (when you earn tens of thousands of points per battle), you level up two or three dynasty levels, and then a crash occurs. When you return to the game, you have exactly the same number of points as you had during the previous game session. I've also analyzed another aspect: there are several types of crashes, and points are not lost in all of them. Recently, crashes during battles have been joined by crashes when entering castles. Previously, I would always reload the game before a battle to be on the safe side, but now this problem can occur almost at any time.