Is it me or does his ult go complete haywire because i was just in a game and i tried to get my ult all the way down to a fight and it goes half way then comes back, idk man i could have placed it in the wrong direction and pressed r too early. This happened a couple times though

You either hit R again which recalled it. Or it hit a champion. Upon hitting its first champion it then returns to you.

If it hits an enemy champion, it stops and turns back around. Unlike Ezreal's, it doesn't usually reach the end of the map.

Yup i think it hit an enemy champion ill try it out later