Slider issue

Hi

I have a set of questions that young learners assess how they feel by using sliders, the slide moves an object across the screen. It all works well until rather than individually creating a different creature icon and slider I duplicate it, then storyline will not move the slider beyond the result of the previous slide. I have also tried to confuse it by doing 4 new creatures and then duplicating them in a different order, but it still remembers where they were on the scale and subsequently the creature will not move past that point...

I have included the file and apologise for the long winded explanation...