Xin Zhao Ultimate bugged

I just played two games in a row where Xin Zhao's ultimate was glitched or something. When you use audacious charge on a enemy it keeps that champ in front of u and knocks the rest away. Works correctly then. However, when I don't use xin's "e" audacious charge it still keep the enemy im attackin in front of me. From the ultimate description it should knock away the champion if I don't use xin's "e" audacious charge. This is a huge difference when I don't use e against tryndamere and "Want to knock him a way then e to him"