Once, I have the game unpacked, do I run it with the "medieval2.exe --io.file_first" bat file option every time or just to start a game and the reload can be played just running the regular exe file?

using "medieval2.exe --io.file_first" to load save games has resulted in some irregularities for me. for example, all traits on agents changed to anti-traits... once I run the game using the normal. exe file, the traits are still the normal ones (the same save game).