Sounds like maybe it wasn't meant to be with that one, unfortunately. So many issues so early in life isn't a good sign. They aren't all meant to make it.
So glad your other two are doing well, though! :)
Ok, well that's sad. :/ I'm guessing that one possibly had a yolk sac infection then. Sometimes when it's swollen like that it's just temporary until the body absorbs that yolk, but others it's a sign of infection inside. Hard to tell for sure, but so sorry for your loss. Hope all the others are...
Could be just the absorbed yolk sac that is still there, it should go down in time. If you want, you could put some betadyne or anti-bacterial gel on the area just to be sure no infection gets in there. If it is scabbed over it should be ok, though.
They will preen themselves and become fluffier over time, no need to help them with that part. ;) Sounds like everything is progressing normally, so all you can do is sit back and watch the magic happen. ^-^
Watch the one with the curled foot, if it is still curled after another day you might...
Oh, I'm so glad you got him out, then! Good job. :)
They will be fine in there until they are fully dry. Are you expecting any more to hatch? If not, you can open the incubator and quickly remove all the egg shells and goop if you'd like. If there are other eggs left to hatch though, I would...
He could be stuck in there, or just taking his time. Sometimes it's hard to tell for sure. Is it just the lighting, or is his egg discolored all around the pip hole? Can you see if the membrane just under the shell is dried out (it will be tan/brown instead of white)? If the membrane has gotten...