Same issue here: My K95 is running the version 1.07.123 of the firmware. iCue says that update version 3.21 is avaliable. When I click "update" the keyboard simply disappears from the hardware list, than I need to quit iCue and start it again.
Also, sometimes random keys light up with wrong colors, to solve this, I usually change the brightness of the "static color" profile that I'm using (Sometimes it doesn't work so I need to change the iCue profile). It happens more often with some specific keys (B, Numpad2, Numpad6, Numpad0), but it's usually random.
I don't know if there's any relation between this and the firmware issue. Any (OFFICIAL) solution?
