:goodpost:
I'm curious since I've never actually float tested eggs before, but is it possible to mistake a sleeping chick for a deceased one- or would there still be some movement during it? Just curious, wouldn't want OP to throw out living eggs!
Don't throw them out without checking, it's not uncommon for eggs to hatch on day 22- I would candle each egg, carefully, looking for movement. They probably just need more time.