Teemo ult bug

Now im not sure if this is a bug or not however if its not then ill get into that later

Scrying orb isnt revealing teemo shrooms, happened multiple times not sure if this is a bug but in the case its not then i can all the others to not be revealed by it then i main support and when getting ganked having my jhins traps spotted out caused the scrying orb sees it is bullshit when the 800 damage teemo ult cant be revealed when i get this trolling squad teemo/twitch bot lane