Well, once you get into the game with one of those AutoSaves, you stand a good chance of running into weirdness. The v1.4 Saves are not compatible with v1.5. What I was getting at before is the fact that the game is not trying to display 3D objects in the AutoSave, so it appears to be compatible. But once you start encountering ships , planes & other subs, things might go wonky, even to the point of a game crash. I'm not saying that such is the case 100% of the time -YMMV- just that if the game seems to be coming off the rails, it is probably from using an old save.
