Bought the mouse few days ago and got it today.
Downloaded and installed CUE software and profile could not be accessed and device status says Malfunction. Spent several hours trying to find a fix until i found this thread.
I have also Corsair K90 keyboard and i removed all the corsair drivers and software several times now and no help at all.
Tried different ports, USB 2 and 3, waited between device connect connects but nothing helps.
Have never had this kind of a problem with a mouse and have used dozens (Logitech, Razer, Mad Catz etc) over the years.