Issue clicking jungle monsters on the new Summoner's Rift

Maybe it's just me, but there's something off about click-boxes on the new jungle monsters. I click them and my champ won't target them sometimes. This happens the most with the scuttle crab, I'll orb-walk to chase it between auto-attacks and because it doesn't fight back you always have to A-click it directly between steps and sometimes it won't register that I clicked on it.