This has just come to my attention through a generous friend. She added a Manbearpig sticker to my collection. I told her that I had all but one sticker. I received my full sticker collection achievement just after the wishing tree where I got the last sticker I needed. This would have necessarily included the 2009 Manbearpig sticker. I remember it as being in my collection. Yet there is only one copy rather than 2 copies in my album. She said that I'm apparently also missing the Oceanic 2012 Sticker and the Yellow Daffodil Sticker. I definitely had those also. They are no longer there.

My computer has subsequently upgraded itself from Windows 8 to windows 8.1 All sorts of nonsense happened to my computer at this unwanted event. I wouldn't be surprised if this is more nonsense as a result of the upgrade. Or it might be a Subeta thing. Just want to bring it to your notice. Thankyou for your attention! :)

Edit - I use Chrome

Hello! Yes, when I took a ticket, after some time to investigate, the stickers were replaced. :)