I had something kind of like this happen with one of my chickens eggs. Here’s the post about it...
https://www.backyardchickens.com/threads/vein-encased-yolk.1396593/
Just found this thread!! I really hope #1 makes it! I got a tiny egg from my golden laced brabanter today. Now I’m inspired! 😂I’m going to try incubating it.
Oh I know it is soo nerve racking and exciting!! But you got this!! There’s nothing harmful about moistening the membrane. Do it if it’ll make you feel better
That’s normal, it’s just drying out a bit. You just don’t want it to dry to the point of shrink wrapping the chick. 😬
how is it doing? Still moving around some?
Once you open the membrane it should give you a clear visual of all the veins. After awhile you should start seeing the veins clear up. If the chick gains enough strength to finish up hatching on its own then great. However, if it makes no progress I recommend chipping away a large enough hole...