I had same issue before, but now i have fixed by myself , u can follow my step. but i use Gigabyte X470 (AM4 socket)
1/ uninstall RBG fushion
2/ Update back old version Bios of main F3g , the newest is F3
3/ Go back to Icue update firmware ram. (will cant update firmware if use Bios F3)
4/ Reset computer and now u can enjoy change anything color of ram at Icue.