Your mistake is assuming the egg would come on frame 1. There are wandering NPCs in Solaceon, so you have to calibrate each time you go for an egg. What frame did you end up getting? Take that frame, subtract 4(for the 2 flips you did), and use that number as the frame the pokemon starts on.
EDIT: Wait, are you checking to make sure you hit the right seed with the coin flips?
I don't know how to check if i hit the right seed with the coin flips (lol)