Are the new "chance" nodes bugged or nerfed? There's a big difference between a 10% buff on Nutaku and the 40% buff it apparently gives on DMM.
I don't think they're bugged or nerfed; my guess is that when DMM first put them in they were 10% and later moved up to 40% to adjust for harder missions. 40% would be overkill on Nutaku right now.