Everyone have different conditions for game crash.
Mine, using 2nd ship for the day will absolutely trigger the crash.
IE, I'm bored with Le Havre, then decided to do some AA, I pull out my Emden, when the battle start the game crash. It's not just Emden(or Moltke), but everything 2nd ship I tried for the day, CV, SS, other BBs as well. Even if I use them on Training Mission to gauge the range.
Plus the crash after several games, with many fdd blue icons in my taskbar.
Anyone else crash when changing ship?