Weird. Working in the current build on my end. Are you dragging the eyeball onto the top of the grabber head and letting go?
I WAS SUPPOSED TO GRAB THE EYE FIRST!!!!!!!!!!!!!!?!!!!!!!!!!!!! Ugh, every other interaction with the grabber involved clicking the grabber first, so I kind of assumed I'd have to do so there, too. I feel like there should've been some kind of hint that explained that since I typically learn by having instructions.