Adobe animate Frame picker multiplies and not working

[Darth Mau]

Hello, guys!

My frame picker is multiplying the images (there are always 3 identical images) and if I try to choose an image from slot 21 onwards inside the picker I can't. What could this multiplication be, since I only have 1 graphic simbol?

Thanks! 

[_keyframer]

I don't understand "multiplication" in this context. Can you provide a screenshot(s)?