Hi,
I have the exact same issue, but i can reproduce it at will:
I have set my RGB in Corsair to the standard predefined "Rainbow arc"
And set the Hardware lightning to pitch black (so that it looks OFF)
When i launch Ace Combat 7, and get the game screen flying my craft, i instantly ear the common usb sound, and my H115i platinum turns to black, meaning that something gone wrong with the software.
Exiting the game, double-click on the icue software, and it says "No corsair hardware found".
It's reproductible 100% of the time : Ace Combat 7 makes the corsair driver going crazy.
Someone said it could be linked to the fact that AC7 tries to enumerate through USB peripherals and thinks that the corsair one is a joystick, making it crash.
EDIT:
More investigations.
If i quit the ICue application using right on iCue's icon -> Exit, i'm going to hardware mode (wich is normal) and i got pitch black lightining, as i've set it up that way.
Now if i launch AC7, no more USB Disconnect sound, i can play all i want and exit the game.
Then i can launch iCue again, and the Corsair is detected, the RGB goes on again, and the temp/pump/fan speeds are updating.
This time, i don't exit ICue (still in tray), and launch Ace Combat 7.
As soon as i enter the actual game (aircraft flying), instant USB disconnected sound, no more Corsair Lightning.
If i exit the game, ICue still sees my H115i, but all values are frozen (pump, fan speed and temp) meaning that the USB communication is broken
If i click "Restart ICue service", it tells me that i don't have any corsair hardware.
So that's is:
When ICue is running, it seems that it can receive commands, and AC7 sends something that make the Corsair USB driver crash.
Corsair, could you investigate this and make your USB Driver stop crashing when getting commands it does not understand ?
Thanks ;)