I think it is probably ok. It looks like a shellless egg with the membrane developed, my chickens have laid one like this before and they are fine. This is normally due to not enough calcium and or protein, my chickens are on 16% protein feed and have a tray full of mixed grit (cotaining oystershell) an alternative is to grind up their shells and once dry put a little bit in their food! Hope this helpsAt a friend's house and their chicken did this poo on me. It looks like a yolk or something.
Is the chicken sick?