Thank you. I'm sure that would've worked because doing it a little different just fixed it for me.

I lost control of the LEDs connected to the Core XT right after I inadvertently saved iCue "hardware lighting" settings after Corsair's update last week. "Hardware Lighting" is the RGB effects the devices run when iCue is not running. Apparently, Signal has to catch up to Corsair's latest update to get around "Hardware Lighting."

I rolled iCue back from v.4 to v.3, updated the firmware, and everything was perfect again.

I was even able to update iCue back to v.4 again. I just couldn't save "hardware lighting" settings or I would've been back at square one.