We started incubating 31 cinnamon queen eggs. After sevens days we candled and all was good. Later candling indicated 9 needed to be gotten rid of. Heat was adjusted correctly and water was put in 1 to 2 cups a couple times a week. Everything was cleaned and sanitized before hand and used distilled water so zero containment’s were transferred. At 21 days there was no action. At 23 days a chick started hatching but only one. Today was 25 days and none of the others had hatched so I started investigating. There was a few bad, but two that I opened had living chicks in the them and died almost instantly after. There abdomen wasn’t fully closed and most or all of the yolk was inside. Both had, what I would consider, an excessive amount of fluid around the chick. We left the others inside the incubator and did not open anymore eggs. Can anyone explain what has happened and or what I can do now or next time.