[GAMEPLAY BUG] Yuumi Q VFX issues cause it so be almost unusable. [SEMI-SEVERE]

I have been playing several games as Yuumi recently, and about 20% of the time as I am using Yuumi's attached-form [Q], it begins to go haywire. Instead of following my mouse cursor, it teleports around and does not follow my mouse.

Now that it has happened more than a few times, it is clear to me that the missile does follow my mouse, albeit invisible. It does so in replays as well, but it cannot be seen during the game I am playing. I will attempt to get a video of it happened while I play instead, but currently don't have one as it happens while I play in-game. I encourage you to try it out yourself and cast Yuumi [Q] from targets while attached, eventually it will happen. One-fifth of the time is enough to impact my gameplay with her however, and it has occurred in ranked. What I do know, is that when it does happen, it stays that way for the remainder of the game. Restarting the game can fix the issue, but it takes me several minutes to restart the client fully and I don't have that time in a ranked game.

3. Generally I have not found a way to intentionally reproduce the bug, besides it being happenstance playing Yuumi regularly and using her [Q] ability. It may be that specific champion attachments cause it to happen or happen more often, but I haven't had a ton of games with all of the champions yet and when it does happen it has been a different ADC each time.

I have not altered game graphics in any way besides setting the general slider to lowest, to get the most FPS. Whatever settings this sets my league game to is what I have kept it at and have no other issues besides this one, and have kept this setting for years.I will attempt to play at different settings to see if it happens there but have yet to as my computer performs best on lowest.