Are you going to bring them back home to hatch?
I'm so hopeful for you. You gotta know the ones that make it will be awesome chicks, after all they have been through!
If you can, maybe candle again before raising the humidity, and hold the egg with the air cell up, and candle down into it. Slightly tilt and turn the egg to try to see if any of the fluid on top is actually in the air cell, or if the air cell is still intact. And look for a shadow that may be a...
I'm a bit mystified, sorry. I'm worried about that air cell, I think I would up the humidity now and go ahead with lockdown. With temps that high, I bet you will have an early hatch.
Hmmmmm. That second pic, the air cell looks like either the chick has broken into the air cell, or its being shrink wrapped. How long has it looked that way? I mean not a perfect circle meeting the shell?