Tahm the Picky Eater wouldnt eat Cait

So i was sitting in game minding my own business, saw Cait in danger, did what any Tahm would and went to eat her, but no matter how hard i hit that button and no matter how much i clicked her, he refused to save her poor soul. Later testing showed he simply wouldnt eat her in general, i could eat the Pantheon /Ezreal /Gnar Easily. Just a post about the glitch, let me know if this is happening to others.