[Gameplay] Anivia Q Still bugged - 4.19

I play fairly often, and while I am glad that patch 4.19 fixed the major casting bug, I noticed something else bugged with the Q now.

When Anivia is aiming her Q up or down a hill, (i.e. stairs into the base, or entrances into the river) the AOE target bugs out and moves along what seems to be the z-axis, that is to say vertically off the ground, at full range you cant even see it.

While not particularly game-breaking, as the cast itself will still work fine, it becomes extremely difficult to target, especially in a jungle chase or inhibitor tower siege situation where landing these skillshots can make a significant difference in the outcome of a game.

I haven't noticed this on any other champions with similar skillshots, so I am assuming that it is a bug. Is anyone else experiencing this? and will there be steps to fix it any time soon?

Thanks for taking a look.