Azir ult fix from 5.16 didn't work

"YOU DON'T KNOW ME LIKE THAT Fixed a bug where enemy champions sometimes wouldn't be knocked back" this comment from 5.16 patch didn't take full affect. Any champions that are dashing ( Q, dash etc) when is ulting don't get pushed away. They continue through and appear on the wrong side of the wall. So much for "impassible".