Old game bug

[Thifiell]

I did not play CK2 about several weeks and when I opened a game, I had 23 thousand money and about 1 million prestige and a lot of piety. Achievement with amass gold and prestige immediately was unlocked.
But I dislike to have bugs? How can I disable these achievements? And I did a lot of work to create Rus, now I have to play again from begin??

look screenshot

 

[Thifiell]

and all my fathers disappeared from this scoreboard!

 

[AndrewT]

You are playing a pre-2.4 game under 2.4 . Old save games are not compatible with 2.4, I'm afraid.

You will need to roll CK2 back to the version that game was last saved under, probably 2.3.6 - right-click on this game in Steam, Properties, Betas tab.

Then load the last save from before you took a break from the game.

 

[Thifiell]

Oh such a pity... Thank you for an answer. I think it is easier to begin a new game. Pity that I cheated with achievements though.