Aram Oracle Bug

I noticed a bug on aram related to the oracle potion. Basically after buying the potion two/three times it becomes permanent. Even after it runs out and the visual effect disapear (as in the outline indicating range and the red outline for showing things in the bushes) things like teemo shrooms or traps still appear. There is no red outline so it does not show things in a bush when you are outside of it but the second you get in the bush it will just appear. I have only noticed this when playing Thresh (Blood moon skin). It happened like 3 times now so I just wanted to report it.