So anyone else have Sion's Q and R randomly stop working?

So there I was, in the middle of a game (and to be frank, getting owned by a Lulu top) when all of the sudden my Q and R stopped working.

My W, E, F, D, and 4 all worked fine, but as for his Q and R, I couldn't use the keyboard shortcut, couldn't click on them to activate with my mouse, couldn't do anything. Obviously it wasn't my keyboard, as the Q and R keys are working perfectly fine typing this up.

What gives, Riot?