[GAMEPLAY]Leblanc appears to still have VIllain icon after dying while invisible from passive

A few days ago, while playing Garen, I killed an enemy Leblanc while she was both indicated as the Villain from my passive and while she was invisble from her passive. Later on when another enemy was marked as the Villain, I noticed Leblanc still had a Villain + Ult Execute Threshold Met indicator above her head, despite no longer being the villain.

I believe I may have killer her with Demacian Justice while she was invisble (as it looked like I casted it on her a split second before she went invisble), or that I may have killed her through some other means during her invisbility, but it was defintely disorienting and confusing.

I'm not sure if I could ever reproduce it again, but I'm pretty sure the bug exists.

Step 1: Be Garen Step 2: Smack an enemy Leblanc that is the villain Step 3: Cast your ult on her so that you don't kill her before her passive triggers, but you kill her before she is done exiting the invisibility part of the passive

I think that's how it goes. It may or may not be the same for all villains that die during their invisibility. I don't know.