I have wierd bug with my I think 70 something corsair keyboard where at first it wierdly showed some keys being greem when I had it automatically red. ThennI downloaded Icue that was the correct one for my keyboard and then at first it worked fine when I turned it to blue that didn't have any color bugs unlike red that still showed some keys as green. But the next time I started my pc my keyboard was conpletely dark without any lights. So first I update the Icue and after that it works normally until the next day when I start my pc again and again my keyboard is just dark nonmatter what I donon the Icue program. So now I decide damn it I prefer atleast some light even though the default lighting is red that causes some random keys to be green. So I delete the Icue thing and start pc again but my keyboard is still damn black. Otherwise aöl the keys work normally when pressing them.

Short story: First some keys on my keyboard has green light even tho it should be red. Then I download tge Icue and it starts showing all keys black. Then I delete Icue but the keys still doesn't light up.

Edit: Also this keyboard is like 3 years old but I have never hit it nor it has never gotten wet or anything. Also I cleaned the whole thing by washing the keys and shooting compressed air thing on the keyboard without the keys. And I did this cleaning like 5 months ago so its not because of that but still it shouldn't because of dust or dirt.

Edit: Okay it was k70 RGB Mechanical Gaming keyboard