Elixirs revealing Camouflage and Invisibility [Gameplay]

I just lost a game where I was caught trying to kill someone as Shaco and it seemed bizarre how they knew I was there. The enemy team then told me that the elixir of iron particles showed exactly where I was. I'm hoping that this is a bug and not an intended effect of buying elixirs. I immediately tested the elixirs out during Shaco Q and all three of them showed some sort of trail. For both Elixir of Wrath and Sorcery there seemed to be some sort of short shadow trail that only appears during stealth. I haven't tested yet if this weird shadow trail, that I can only see during invisibility, is seen by the enemy so they may be fine. However, Elixir of Iron especially with the new bubble particles is clearly visible and ruins stealth including invisibility and camouflage by showing your location to the enemy team.

I hope that the elixir of iron trail is meant to be hidden from sight during stealth, because it's a very useful consumable that stealth champions should be able to buy without ruining their kit.