You may want to check on it overnight to make sure he isn't ready yet. If they're assisted much at all they have a hard time getting leverage and hatching on their own most times.
Oh wow, yeah definitely not ready. Your pic is so much better than mine, lol. If you catch an egg zipping at some point you should try to candle the pointy end, it's really interesting. It'll be totally clear besides maybe some wastes. 80% is perfect. For eggs that are being assisted I usually...
Well none of my eggs are close enough to show a clear pocket yet, and my phone take bad pics in the dark so this is the best I could do. 😅
Here's a pic to show the pocket area I just took. It's the pointy end of the egg. Sometimes it's hard to find. I try to use an actual candler or a small...
Do you have a salt tested hygrometer in the incubator? I'd get humidity as high as possible. I do still see some veining there so you've probably got at least a few hours before he's ready.
Personally I only consider something shrink-wrapped if the membrane is yellow. White/thin = moist and yellow/rubbery = dry. White is ok even if it seems tight, usually that's from it being a larger than average duckling and stretching it out extra. They seem to be able to hatch just fine unless...
I don't know that it looks shrink-wrapped. Was the membrane extremely dark yellow?
I'd break through some of that goopy liquid and clear it. Anything that isn't veins or doesn't have veins running through it I'd get out. That's enough liquid to get in his lungs and drown him.
He looks positioned...
Yes, usually they pip the pointy end if they aren't in the correct position, though they'll pip through the middle of the egg sometimes too. It might be a very tiny pip that doesn't break the membrane but breaks through the shell. That lets in plenty of air for them to fill their lungs and peep...