I also had this weird thing happen to me a few days ago... So I was at the Stream and I saw an egg I wanted, so I clicked on it. It was really laggy, and nothing happened. So I clicked on it again, and it worked! But it said "Someone has already taken the egg". I went to the Keep to see if I got it (because sometimes there might be this glitch where it's really laggy or whatever and you click on it again, but you already got it, so the message pops up), nothing was there. Later, as I was breeding two creatures and successfully getting an egg, I saw the egg that I had tried to get earlier. Went to the Stream to check again, same "You can't take care of more than four eggs at a time".
So the question is... Is this just a weird glitch/bug that happened to me?!
(( Sorry for some misspelling and weird grammer, I was typing all of this on my phone...
![Oops! >.<](./images/smilies/pfff2.png)