Those are two pics of the same break out.
Consistent low temps or consistent high temps, setting chilled eggs in a warm incubator, and too much fresh air in the first four days are among the potential causes. If your turner has a violent action that jolts the eggs, that could also cause issues. Same with ensuring that the air cell is up rather than down.
As more developed eggs are successful, I'd look first at temperatures. Can you find something that will simulate the mass of an egg but that can be penetrated and that won't spill or leak when you tilt your racks? I used pourable silicone to cast an egg sized and shaped mold and make a hole in it to insert the tip of a digital medical thermometer. I leave this fake egg in the turner tray and press the button once a day to obtain a reading. Rather than displaying air temperature at the moment, this fake egg reflects the couple-hour average incubation temperature. This temp is critical for development over the full incubation period and should be 99.5-100F.
Next is to check for temperature dips or spikes. Dips below 98.5 that last more than an hour, or spikes above 103 that last for more than an hour, can cause lasting effects to the embryo by interrupting critical development stages. You will need a thermometer with memory to record this. Compare the temperatures with your medical thermometer and adjust your readings accordingly, if your medical thermometer reads 99.6 and your weather thermometer reads 98.7, be sure to adjust your recorded high/low temps by adding 0.9.
During the first four full days of incubation, leave the vents closed.
Candle at 10 days, disturbing the eggs as little as possible including gentle handling and putting them back in the incubator as quickly as possible.
After 12 days, the embryos are better developed and more tolerant of changes that would be fatal to a younger embryo. The closer they get to hatch, the more robust they are. So your issues are those that affect early development of the embryo.
