Player 2 only available on previously saved .SAV files

Hello everyone,
some months ago I’ve saved some predefined setup on a game module (CCAncients).
Now if I try to open them I can only choose to be “observer” or “Player 2”, how this could be possible?
Does this strange feature avoid me to play that map online (because Player1 is not available)?.

I tried to disconnect Player2 (becoming observer) and saving again the game, but the next time I load it nothing changes.
“Player 2”

(in a few other saved games I can see the standard list: “observer”, “Player 1” and “Player 2”)

Please, help me!
Thank you