Same problem here. Fifa run smooth and I played 3 seasons with Barcelona without suffering a single crash (and I used the youth acasemy and scouting system since the first season). Anyway, when I reached 2014-09-26 the game crashed to desktop with no error message.
Restarted FIFA, continued the same career mode and it crashed again. So I loaded a saved game from 2 weeks before, simulated both matches and the game crashed again on 2014-09-26.
I contacted EA support but they didn't provide me any solution
I have read on other forums same thing you're saying here, that it may have something to do with youth signings, but I find it hard to believe, as I played 3 whole seasons without a problem.
So, not a single fix for this atm? Do I really have to throw 3 whole seasons and start again, now that my players (Wilshere, Eriksen, Jano and so) where finaly gettin good? T.T
I don't think EA will fix this anytime soon, so I hope someone finds out a solution to override those crashes. I'll keep you informed if I find anything that may help
PS: Sorry if something doesn't make sense, it's been a loong time since I last wrote something in English