I received 15 EE eggs two weeks ago. Not a single one was broke so i set them that day at midnight. After few day i candeled-nothing. But i figured give it a few more days, as i only have a crank flashlight and the shells were green. Fastforward 4 days. Again nothing- i deceided to open a egg that i was confidend was empty. I found a bulls eye , but that was it. Now at day 14 i took all the clear ones out and only kept the 3 in that are so dark that i cant see in. What can cause a total wipeout ? There were two with the air pocket knocked loose, thats it. could it have been the USPS x-raying?