Buying sold riders on the transfer market

[flockmastoR]

Did I miss something. Is it not allowed to buy riders that you sold some time ago? Did check some old riders of mine on the transfer market and saw, that none of them has the Buy now button.

Remember there once was a discussion when RideforMoney bought a youth rider very much overpriced sold it and rebought it later. So at least there was a time when this should work.

Or is it a bug related to a team name change?