Keyboard Bug 6.11

Hello,

I have a keyboard bug, it's simple sometimes my keyboard is frozen, I can't do anything. I have to back to window and come back. After few seconds my keyboard reworks. I have a Razer Keyboard Chroma, W10 and I7 6700 K with 980 ti.

If someone have an Idea, I already tried to repair my client and to do this manipulation https://support.riotgames.com/hc/en-us/articles/201761934-Mouse-and-Keyboard-Issues#wGoToTop

Please help me it's a bug very annoying.