So here's the deal, there was this scout that I wanted to sign, I had no position for him, then I proceeded to terminate the contract of one of my scouts not through the main inbox, but by terminating it on the guy's profile (which I'm used to doing from former fm games).
Now there is an unending wait for confirmation, which I cannot do anything about.
Edit: I used mutual termination.
Edit 2: I signed another scout and the first scout's transfer got blocked again, which I solved by firing a scout on the inbox this time. At least my save is safe :).