Gamebreaking bug potentially. Can't use abilities.

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So I'm playing as Rakan, and I have two points into my e as you can see, but when I click on an allied champion, it wont activate, and also the katarina in my game was having the same issue. I don't know why this happened, but I could use all of my other abilities like w and q and ult, just not e. I've not tried it on anyone else, I just know that Katarina and Rakan have the bug.
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