Internal pip, No external for 24 hours Duck egg

[IrisJade]

idk if i should wait or start to worry, I dont want them to die in there, is the shell too hard for them? The humidity is 65%

 

[Meg22]

Have you read this?
https://www.backyardchickens.com/articles/guide-to-assisted-hatching-for-all-poultry.72886/
Never hatched ducks but they say chickens take about 24h from internal pip to external pip.
Might be worth putting a small safety hole in. Tells you about them in the article.
Hopefully someone with duck experience will post soon.