i play my single person OD almost every night. i've had 1 instance where the game gave me the error "dynasty unavailable".
i had lost the game 47-10, all said and done the game generated me a 13-7 loss, and my stats were not uploaded (which does kind of piss me off).
my understanding is had i not advanced my week, although it had a loss posted, i might have been able to actually replay the game a 2nd time.
i'm using the OS community rosters. i play as Nebraska. When i practice taylor martinez tears me up rushing. ironically last night i played michigan in my dynasty, and robinson rushed 9 for 57 and a td (which most people seem to be really butt hurt about).
since release my game has frozen 2 measley times, both in the 4th quarter.
i have my own sliders, i'm losing my *** in my dynasty, and probably on the road to getting fired, and i can't believe how much fun the game is.
that being said, get the game, you won't be sorry. you know a patch is in fact coming, and if you only read the gripes here and shake your head, play your game, your way, and forget the nonsence people try to fill the boards with, you'll enjoy yourself very much.
it's a great game, probably going to get better.