I assume you sent to scout one player? If so, maybe you pressed "scout for one match" instead "scout report only". Happens to me all the time. If so, go to /team/scouting/scout and remove that player. Send him again, but this time press first option, scout report only.
If you sent scout to scout some country, you need to wait 'till report comes. Every weak or two they bring new reports, I think.