I have noticed that in the last couple days when I click advanced to get the little smiles that are available sometimes the ones I want to use and know are here somewhere are not always available. For instance the little "Welcome" sign was not available for me today. Yesterday it was the "I Love Tits" one that wasn't available. I noted the ones that show up before hitting the "more" button changed at the same time as these I mentioned started not being available. I should say that the smiles I mentioned are available some of the time at other times, as I said, they are not. Any ideas on what is happening?

Thanks.