Zac's E faces a different direction when on the hud or just randomly.
I love playing Zac
: he fits my play style perfectly. This bug is just really annoying and can cost a game, which bothers me that Riot has not fixed it. Zac's E (Elastic slingshot) is supposed to aim towards your cursor, but I find that it aims in a different direction when I have my cursor on the hud (minimap/character bar) and others have said that it just aims randomly (not sure about this because this always happens when trying to slingshot down no matter red or blue side). This happens about once every game to once every 2 games, but it has cost me a dragon steal (but no baron ones thankfully). I would really like Riot to fix this and add a new Zac skin (Spaghetti Zac, Space Zac, Debonair Zac, Program Zac) to compensate for leaving this bug for a long time. ;)
