[GAMEPLAY]Quinn's Vault bugged at short range
When using Vault at short range, Quinn will actually land farther from the target than her attack range. This can make harass and kiting more difficult, especially if there is terrain or objects in the way. It also means that it is much more difficult to proc Harrier on enemy champions who are running away as they can simply outrun you.
It seems that the bug is tied to the fact that Quinn's Vault knocks back its target.
To reproduce, just use Vault at a short range.
Please watch the linked video, it explains the bug very well.