Lol i think i understand what you saying.
Looking at all the other eggs, some single others with twos and threes there is the outer layer of what i will call runny jelly, (fancy terms here you notice), inside that there is another sac which contains the embryos.
This egg sac differs in no way from the others as far as i can tell.
It may be nothing unusual but it is the first time i have noticed that many.
I just wish i had a microscope so i could have a better look.
Oh well will keep you all posted on developement, might be able to tell better when they are more developed.