Really horrible unit collision
I'm not sure if anyone else has noticed this; but, ever since the new Summoner's Rift map update, the unit collision has been horrible. I'll tell my champion to run back, perhaps to avoid turret hits, and they will start to go around a minion wave, then change their mind and start to go around the other way; sometimes, they'll even back off towards the opposite direction THEN decide to go around.... I can't tell you how many times my indecisive champion has gotten killed because of this.