[GAMEPLAY] Xerath- chanelling his Q, sometimes, will not do anything

When Xerath's Q is held it will channel but the ability will not cast, this has happened a few times to me already in the past 2 days. It may have also happened during his R, but as I am new to him, I cannot completely confirm, as I may be casting it wrong sometimes. But his Q definitely does channel but not fire when Q is let go, after holding.
Report as:
Offensive Spam Harassment Incorrect Board