hi, im having the same problem since yesterday with two different keyboards in two different PCs, in one of them the "A" key seems to not have "blue values" and only changes between rad and green values, and in the other keyboard i have the same problem but with the "Z" key, the first keyboard was my EVA rog strix rx, and i dont remember doing nothing, i went to the kitchen and when i go to my room the key is green, and the othe was in a friend house, we were installing windows for the first time, here keyboard was all white, and then, the momment aromoury crate pop up notification for installing armoury crate software shows, we installed it, and just when it was installed the "Z" changes to some green or yellow, i think in all the cases should be a software issue and maybe with armoury crate, i tried uninstall it from my friend pc and reinstall and it didnt worked