I am also pretty sure that it is a bug. I have been selling 4-5 players for 3-4 days and nobody buy them. I am level 9 so there must be many teams see my 3-4 stars players as 5 stars. And as you guys mentioned, the bidding time was always 30-40 minutes. It was totally different from my past experience. In addition, I have a sub-account which is on the same server and 1 level below. I can never see the players sold by my main account unless I go and check out the main account team. The transfer list was damn short so it couldn't be due to full of transfer market. Damn weird.