HoMM3 HD bug reports.

I've encountered this issue several times: we start, the data transfer begins, it ends, and when both players have loaded, the game kicks me back to the main menu, often without allowing me to save. This causes unnecessary problems and suspicions.

As far as I've noticed, this happens if, for example, you press the button to exit to the main menu, but at that moment, the connection with your opponent is interrupted, or they exit, and you are automatically kicked back to the main menu. In this way, the game somehow remembers your last unfinished action, i.e., it is considered unfinished because you were kicked back to the main menu due to the disconnection, and not voluntarily, and then it completes your action, i.e., it takes you to the main menu when starting a new game. To prevent this from happening, I usually load a single-player game and only then join the multiplayer.