Nidalee passive bug?

I was playing a 3v3 and I hit an enemy Shaco with my q and it marked him and he used his q to get away. For the rest of the game the player Shaco (The non clone Shaco) had the arrows pointing towards him as if he was still marked. This is really game breaking for Shaco because it removes the deception from Shaco's ult and reveals which one he is no matter the circumstance. If I encounter this bug again I will make sure to take screenshots/video to attempt to assist with further explaining this. Hope it can be recreated.

Shaco players because of this bug: