User blog comment:BonesMcGee/Brainstorm: Potential savings in using the hurry hatch trick/@comment-5432528-20121128020756/@comment-5200570-20121128022105

Are you sure it's a hatching dino and not the dino den itself building? I know mine often will display it as the dino den rebuilding which also has a HH of 10 in this case. I used to get so mad thinking I was losing a rare dino until I saw it's actually the dino den itself.

But if that's not what you're experiencing then no, I haven't experienced what you have.