I recently went to my local vape shop to get some new nautilus coils. I came home with two, 1.8. The one looked as if it had maybe been open and when I looked through it I didnt see a screen. The other one and previous coils had a screen. This one I just saw a coil and some cotton around it. Is this coil still good or not?? I did try to use it and it seemed different but not sure. I see there are new nautilus cotton coils, so maybe thats what this is??