There have been multiple occasions where abilities have gone straight through my wind wall, I've been looking everywhere and no one has reported this so I will. I was casually playing ranked when I was in top side river running from a thresh when he q'ed me and my natural reaction was to press w (windwall) and it went straight through and even the thresh commented on it, Lucky enough it didn't hit me. This is extremely irritating as windwall is very important in Yasuo's kit.
I don't know how to reenact this it kinda just happens but as any Yasuo player will tell you the windwall is very important and when this happens it is really triggering.
Please do something riot, I'm counting on it :/