A positive feedback disapeared

Its not a biggy at all. Just wonder how it could have happend. I had 13 positive feedbacks, now I only have 12. My partner also confirmed he had seen 13 for a long time.
Conquer Club, a free online multiplayer variation of a popular world domination board game.
http://www.tools.conquerclub.com/forum/
http://www.tools.conquerclub.com/forum/viewtopic.php?f=6&t=6265
bjornjo wrote:Its not a biggy at all. Just wonder how it could have happend. I had 13 positive feedbacks, now I only have 12. My partner also confirmed he had seen 13 for a long time.