How long was your play session? And what listed fix did you use and what is your operating system? Hopefully with that information we can get more insight into what's going on. Hope your issue stays fixed!
My play session was for 8 hours and my operating system is 32 bit (Windows vista). I just typed "bcdedit /set increaseuserva 3072" into command prompt and restarted my computer. This has prevented any CTD so far.