[Gameplay] [bug] Aram Oracles still working after duration ends

Playing Zed in aram against a teemo ( and others, normal aram que) i bought oracles to deal with shrooms. after a while the buff wore off as well as the sign above zed and the circle range indicator. but teemo's shrooms would still apear once i got close to them as if oracles was still on. and i could walk up to them and melee them and receive gold