I recandled them today and the all black egg was normal again! I could see the embryo and he was moving around a bunch!Welcome!All black does not sound normal. I see you have posted some photos.
I do not see anything very well in these photos. Candling from the top is easier I think. You have gotten some good advice from @WIchickMama. Were you able to see anything after?
My DAY 9 eggs usually look like this:View attachment 3292103