Shaco perma invis bug

I did not get video feed or a screenshot unfortunately. Late last night I was playing AP mid Shaco in a ranked game. About halfway through the game I got stunned and black shielded at the same time while invisible. This caused me to stay invisible permanently. Auto attacks did not fix it, neither did casting spells. After dying to try to fix the bug, I was not invisible anymore, however I lost the ability to use my Q ability completely. I tried exiting the game and reloading and still I was unable to use Deceive. Needless to say, we lost the game because I was somewhat useless after that.
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