All five of my duck eggs that made it to lockdown hatched!

Was so anxious after that power outage, but it only seemed to make them a little late. I'll post pics of them later tonight when they'll hold still for a moment lol
I do have a question though about my other set of eggs that I had set about 3 days after the ones that just hatched... Day 28 today for them, none have pipped externally yet, and all of them look like they're shadowing EXCEPT this one. I saw movement when candling while quickly spraying as Holderread recommends, and I just noticed this dark mark on the egg that I don't remember seeing before.
Is that bruising from trying to pip at the wrong end?

These were shipped eggs.
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