That is very sad. Were those OEs shipped eggs too? They can be tricky. Also, some of the darker eggs just cannot be candled well. At best you'll see light or shadow by day 14. Are yours part of the Easter Hatch-Along.?
6 out of 7 of my broody-started eggs went into lockdown today. One is a purebred lav orp, 2 CCLxOrp, 1 EExOrp, & 2 all out barnyard mix - but my BEST layers. Cookie, the broody hen, just picked what was laid that day. I swear she somehow moved some of those eggs into her nest. How she got them to her nest is still a big mystery. (Nests are about 12" off the ground. Also, LF eggs being set by a bantam.) Since the broody started them, I'm not exactly sure of the hatch date. Sat night was the 1st night she slept in the nest box, but prior she was on/off the nest a lot. They may be due to hatch Fri-Sun. Some of the eggs started moving last night, so I moved them to a hatcher/back up incubator this morning.