Zed ults Kat = Kat can't Q, Ult, or Recall.
Just had a game in which that happened. It was the most BS thing ever. It was also in a rank game. Not even restarting my client helped it "refresh" my settings. Nor did setting it to default keybindings in game. I even tried making Q as another key, NOTHING. So I left the game because my team encouraged me to do so since we were all hopeless. After a while I logged back in just to see if they surrendered. Then what do you know, my abilities and recall works fine. But even in the beginning when I first restarted my client, it still didn't work. What's up with that? I think I'll just ban Zed whenever I play Kat. Also, we won that game since they threw pretty hard trying to catch me, the low level Kat, all the time. It was still an ordeal though.