Peak Candle Supply Duck Egg And Fluid Can Be Seen In The Air Sack HELP?

Duck egg and fluid can be seen in the air sack HELP? - peak candle supply

I have 2 duck eggs under My Chook, 1 1 is bad, yesterday morning I heard the baby ducklings rush hours in the bowl, but yesterday afternoon and this morning nothing.

Now I see myself candling eggs, if I see the movement and can see the flow of water into the egg, if I leave and is still in the air bag?

Is this normal?