BCA Coty Sensabaugh now non auctionable.

The thing is that BCA Player Coty Sensabaugh CB 80 is now non auctionable.
Almost impossible to complete berry set since we need 10 gold players.

It was auctionable and now it is not anymore, some people sold it, making profit, some bought it to berry's set.
Now if you want to sell it you can't, if you want to buy it you have to pay millions since there is only a few left in the auction house.

Some people are complaining about the same problem.
Is it some kind of bug?
Do you think it is fair that it suddenly became non auctionable?