[GAMEPLAY] Invisible Cassiopeia miasma

I was playing a normal game with yasuo vs a cassiopeia (jade fang skin), when i realized i was being slowed and posioned by nothing, i tried to relog but It still was invisible, the weird thing is that my teamates claimed that they saw the miasma perfectly.

I have the match recorded, but there miasma is perfectly visible so I dont have any more information available