That sucks! All the ones pictured look like they would have been viable.
The kinking, bone shifting, and bloating is just a side effect of the decomposition process and the tissues loosening.

Judging by how good they look--My theory would be: As they got bigger and required more Oxygen they suffocated due to insufficient air exchange.
Drowning would be another possibility as well: But, the cut eggs pictured show no sign of water damage and they are suspended on the plastic grating (which is good).

I did have some bad luck this year as well with a clutch of 8 and lost one egg every other week or so until I had one survivor. So: It happens.