I've been hatching pets and I've notice two things that seem buggy to me.
The first is that I was hatching a 257 stat on will for a pet that also received 257 stats when I created it but got a selfish talent that took it's will up to 297, when I hatched those two together I was expecting the minimum of 257 on will for the new pet but instead ended up with will being 227. I hatched with two other pets exact same and got 227 back on the baby as well. I think this is a bug because none of my pets I used had 227 will to begin with.
The other bug is that I'm hatching a deathdactyl on my storm and I have gotten a few up to ancient but when I mouse over them to look at stats and cards everyone is displaying a Leviathan card as a third spell. The deathdactyl doesn't give a Leviathan card at all so I know this is a bug.