Katarina bug

So yesterday I was playing on another account of mine with katarina while suddenly mid fight my Q stopped working and also my ult stopped. I still could use my W and my E but also auto attacking was not possible. Because I was useless basically I tried to recall but that also did not work. I had this bug once more on this account aswell and after some searching alot of people had this bug. Luckily because we were winning I could leave the game and reconnect and then everything worked for me but this is still annoying and I would like to see this fixed.
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