I am getting the same thing, the math of it is,, 1 out of 2 will pick up, 1 out of 3 will pick up 2 out of 4 will pick up and the more kids you have it seems only the 2 oldest dont pick it up unless its a new item then they all pick them up, as of right now i have close to 40 kids, and all but the oldest 2 pick up what i put them on, as long as i get them there fast enough. makes for great tech points.