2 bugs: Teemo's poison (visual) & Oracle's Extract (gameplay)

So I've found 2 bugs, both while playing teemo (with omega squad skin, I don't know if this matters, but it's +information)

Teemo's poison bug: This is a visual bug, I've seen it happen many times, it appears to be random, although it may have to do something with doing a great burst of damage (I think the target has to survive it, not sure though) , and then loosing vision of the target (not sure if this needs to happen) ; or it may has to do something with simply just the E or R poison glitching randomly. What happens: the target has the "poison" status effect's visual (those purple "dots" over its head) even after the effect has expired. Loosing vision of the tartget for a time does not remove the bug. I don't know if anyone else sees it or not. I'm not sure if killing the target removes the bug, although, I think it does.

Oracle's Extract bug: This bug affects gameplay. I have only encountered it once. We were playing a custom game on howling abyss, 3V4, I was in the 3 member team. The enemy team was constantly buying Oracle's Extract and using it to detect my mushrooms, (I don't know if this matters,but sometimes I still blown some shrooms on them, while they had the item's effect). At one point, the lux on their team started to see my shrooms even without the Oracle's Extract's effect or even without one in the inventory. Lux had vision of my shrooms if nerby, and they all could target them. I think she didn't see 1 shroom in the upper-middle brush, beacolse they didn't take it out or even mention it. This bug lasted until the end of the game. (I'm not sure if lux saw me with my passive on, or not)