alliance sticking from game to game bug

For some reason, an alliance i made in a game (im allied with the terrans with my custom race.. full stuff, stopped playing cuz on a huge galaxy 200 ships limit is not enough)

Now im working at starting a new game.. but for X reason.. the elements from the alliance apply to my new games.. all.. the.. time.

Ex: Start game, turn 2, i get maps, techs, comm channels, and designs from one of the CPU players (and the "victim" is always the second player.. the one just after me on the list of faction that we can see when we save/load.. and it is also the slot where the terran were.) but the alliance dont show up in my treaties.. and anyway, that alliance isnt supposed to exist! Its like the game got a corrupted file somewwhere that recreate an alliance with player 2.

I only have that game saved and the one where the alliance was made.

Really weird and frustrating.