Synzia

So when I first started FRO, I tamed a Poring and then put it back in it's egg. The egg disappeared out of my inventory, but I figured maybe since the Poring was hungry, it ran away. Recently, I got a Zealotus pet, and decided to put her back into her egg when I went on a boss hunt. I saw a Beloved Zealotus Egg in my inventory, but when I went to put her in storage, she disappeared. I don't know what is happening, but I don't want to keep losing pets, especially ones that are difficult to tame.