I was playing 4-player family games and time ran out. My rating dropped by about 80 and it showed as if I had lost 2 games even though I had lost 1 game.
rating
Lu par 67 utilisateurs
You can lose up to 84 points in one game. But yes - there is still a bug in the 4-kesio perekidnois. I will try to fix it within the next week.