Having the same freezing issues with k95 I just bought from Amazon. The keyboard will randomly freeze and become unresponsive to any keystrokes. The RGB will freeze on. Do remedy I have to unplug keyboard and plug it back in. I have found if I turn the brightness all the way to 0% in icue it will not freeze. I've tried every USB port on my computer and I even bought a powered USB hub to see if it was a low voltage issue. The problem still persists. I have uninstalled icue and removed all the profiles, I have Force updated the firmware, I've deleted all of the keyboard profiles in icue. Nothing works except for turning off the RGB brightness
I'm using a Corsair 850i power supply which according to the software is only using 240 Watts, I am running the commander Pro to control my ll120 fans and the lightning node.