Just wanted to add I too am having countless crashes per day since the update in the Material Room while using Superfly cycles. I get crashes when sliding the animation slider between frames when I'm doing dynamic cloth or something like that. It also hangs and freezes at other times too though I don't notice what I'm doing until it's too late. I'll try to be more mindful for sake of troubleshooting. I just know I've been swearing at my computer and P12 a LOT lately.