Thank you both for your input. The baby has unfortunately died

I did an eggtopsy, and the beak was nowhere near where I was looking. It was under the left wing instead of the right wing. The feet were in the proper position, but the beak was way too low on the side of the egg, not near the air cell. By the time I eggtopsied it, there were no more large blood vessels left, and no yolk sack, just the empty case of the yolk sac looking like they look when a normal chick hatches, but at the time I candled it, there was one very visible and very big blood vessel (seen when I candled) around the back near where the head was, that's why I was afraid to peel there and didn't go that far... Maybe I should have, at the risk of it bleeding out? It looks like it finished absorbing everything, but the holes I made in the membrane weren't in the right place to save it, and/or it was unable to finish turning because it dried out, or didn't have enough shell left to push against... So maybe it could've made it in more experienced hands, but unfortunately it only had me. The membrane was still perfectly clear, from the coconut oil, and was pliable in most places and easy to peel back, but it had started to get stuck in one spot. Not sure if that's what glued it and prevented it from moving.
I am SO sad, not so much because a chick died - I expected and, in fact, was hoping for that, because I'd have too many chicks otherwise - but because out of this color variety, from the 6 eggs the breeder sent me, 5 have died, leaving me with only 1, which might be a rooster. The death rates are just so wildly disproportionate. So far, of the 6 confirmed dead eggs (including early blood rings), out of 22 sent and 4 varieties, 5 are Partridges, and 1 is Silver Laced Orpington. All the Lemon Cuckoo Orpingtons he sent have hatched perfectly, there are none left. So the statistics seem too skewed for random chance, especially considering all the varieties that came from the same farm, and flew the same distance. The partridges just don't seem very viable, for some reason. What a shame, they are the prettiest! If my one remaining partridge is a rooster, I'm gonna need to find a way to get more next time... I'm not sure if shipping day old chicks that far would yield better results