hum, I checked and it seemed the score can't be corrupted in itself, so it might be some weird side effect.
It's not a match you had stopped & reloaded, right ?
Could you turn on the Recordings in the Recordings menu, and press the Scroll Lock key (next to the Print screen key) the next time it happens ? It should send me the .dmo so I could replay the match and see if it happens on my PC or not.
Post a message in the forum if you do so because I didn't get a crash report in a long time, so I'm not sure it's still working correctly, or if there's not much crash anymore in the game, or no one is playing it...
