I don't know if this has been previously reported before or not. Yesterday when fishing with one of my characters I fished up a chest that said it gave me 2 pets. It gave me the pet icons on the left showing what was fished up. One of them was a meow wing which did properly show in my backpack. The other was a draconian which didn't show in my backpack at all and still doesn't as of today. I got the pop up tool tip on the right side of the screen from Mr. Lincoln stating I had just received an egg that would hatch into a pet. Don't know if that is what caused this glitch / issue or not.
I've gotten same thing only with boss drops, the pet icon shows twice but only one pet. The draconian sounds like that could be polymorph TC or maybe a jewel. I think with the lag and freeze issues of late they'll get to this.