End of game screen bug

After the match concluded I went to look at graphs, and then after 6 total seconds (or so) I clicked Play Again.

I believe I had the perfect timing of something coming up in chat at the same instance I pressed Play Again. I think that's why.

But the bug is that I was stuck in the end game screen. I couldn't leave or play again. The Play Again button remained "pressed", but never actually worked. I couldn't press the little "x" button (near the Play Again button) either. So I tried spamming the Play Again button (still "pressed down") and it eventually came back up. So I tried it again and the same thing happened.

The only way for me to leave was to completely close the League client by pressing the "x" at the top right of the screen.