[Gameplay] Leblanc Q bouncing bug that lasted since assassins rework

Hello!

I'm a fellow lb main and there is a Leblanc Q bug that has lasted for a few months already. Me and my friends have found it out since the assassin's rework, but it is still out here after many patches. Since the bug was out there for so long we thought it was something intended, but then I heard something similar of Ryze E was considered a bug and fixed long ago, therefore I'm sending in this report.

So basically, after Leblanc mark targets with her passive , her Q is supposed to bounce to all the nearby enemies with a ready sigil of malice. However, a bug appears to be that, if during the flight of the Q missile, the target die before the Q missile reach it, the Q would stop bouncing to other passive-ready targets. This applies to both before and after the Q starts bouncing. Also, it applies to everything: minions, champions, and jungle monsters.

Steps to reproduce the bug:

1. Mark a minion wave with W
2. When the passives are ready, drop a Q to any minion
3. Have another friendly teammate clearing the same wave using any damage source: Auto attackrs/abilities/anything
4. While the Q is flying to those passive-ready minions, if the friendly player is able to kill the Q's target before the Q's missile land on it, the Q would stop bouncing and disappear right there. (it doesn't matter whether it's the initial target, nor the Q has already bounced on a few targets.)
5. Even the remaining minions still have the passive ready and are still in range. The Q disappeared and would not continue bouncing because its target was lost mid-way.

Same way to reproduce the bug with champions:

1. Mark a few enemy champions with W
2. When the passives are ready, drop a Q to any one of those champions
3. Have a friendly teammate killing a champion while Leblanc's Q is flying to that champion.
4. The Q would no longer bounce since its target champion is dead.
5. The remaining champions still have the passive ready and are still in range. However, thanks to the bug, the leblanc AOE stops right there.

Let me explain why this bug would allow lb's own teammates to screw her up easily. These are all actual situations I've encountered before.

Situation 1: Usually this happens multiple times per game. Leblanc tried to waveclear, first marking the entire minion wave with W, after the passive is ready, she drops a Q to one of the minion. However, the friendly AD shows up and tries to steal some CS. After the Q killed 2 minions and during its flight to the 3rd minion, the AD's auto attack missile killed that minion before the LB Q missile. There on, the Q stops bouncing, even though the other minions left from this wave still has the passive ready. The AD then is able to steal the remaining wave since leblanc has used her waveclear abilities already.

Situation 2: In an intense team fight, Leblanc is able to mark three of the enemy with W>RW: Zac, Lucian, and Nami. After the passives are ready, Leblanc throws out a Q to Zac, trying to deal that sweet AOE damage. The Q first bounces to Zac, proc'ed the passive, then starts to bounce to Lucian. But meanwhile, while Leblanc's Q is flying to Lucian, her teammate, Zyra, one shot Lucian before Leblanc's Q landed on him. Even though Nami was right beside Lucian and the passive is still ready, the Q stopped at Lucian, therefore not be able to bounce to Nami. Then Nami was able to get away, even though she was supposed to be killed by the passive.

Situation 3: Leblanc got a huge wave under her tower. There were like 7 ranged minions. She marked the all of them with W, after the passive is ready, she drops a Q to a minion. However, the tower's attack killed that target while Leblanc's Q was flying to it. Leblanc's Q did not even start to bounce because the target was dead before the Q missile reach it. Leblanc then missed almost the entire wave because the tower would just kill off the ranged minion after they have taken damage from Leblanc W.

Pretty much every Leblanc main can confirm this bug. I'm probably not good enough, but this bug report is actually requested by some of my masters/challenger LB main friends from other servers. They have been encountering this bug everyday. It can be game-changing and frustrating because it's your own teammates that can screw up LB's team fight. Riot please fix this!

Thanks, Thefriendlydaddy