Sorry I do not have a perfect world fix but, after creating a ticket with corsair they were going to send me a new commander core however since it was out of stock at the time I decided to just deal with not being able to change fan curves until they came back in stock. I never reached back out for a new commander core because I ended up having to do a clean installation of Windows due to some other issues, which ended up also fixing the issue with iCue controlling the fans. Since the clean install I have not had any issues with fan speeds or monitoring. Not sure if it has anything to do with it but I also no longer have the DC fans and all my fans are now PWM and able to be controlled, even though one of the fans isn't even a Corsair fan.