PROJECT: Yasuo With Default Skin Wind Wall
So I played a game against someone with the PROJECT: Yasuo skin, and noticed that his Wind Wall didn't look like it was supposed to.
The first time in the game I saw his Wind Wall it looked like the hologram wall it's supposed to be, but after that it looked like the Wind Wall of the classic Yasuo skin for the rest of the game.
No idea how it happened or the origin of the bug, just wanted to point out that this can happen.