Well, guys are you sure this is a bug? I'm asking this because somewhere in the forum I read that in patch Y, apart from the CT, there is another added feature, mishifting (if that's how it's spelled) and it's occurring in sequential gearboxes with throttle-cut such as FO8/FJR, FOX etc. And i'm saying FOX because I have that problem with shifting with it as well, mostly when trying to shift from 5th to 6th going full throttle. I try to shift with easing up the throttle in order to prevent mishifting.
P.S. Please correct my above statement if you think that it's wrong.. Thanks