I am Fulham in season 27/28 and trying to sell Taty Castellanos to Bournemouth.
Fee and contract agreed and accepted but he failed to get a work permit and Bournemouth do not have an ESC place so the transfer did not go through.
Now he is stuck in my squad and I cannot do anything to sell him, cancel the transfer, release on a free, or enter contract negotiations because is says he has already accepted a contract offer.
I hoped the transfer window ending might have automatically cancelled the transfer but that did not happen, and I cannot think of any other way to get it out of this glitch.