This is a problem with the Mac version. It's happening to me as well and SI is aware of the problem. There is no current work around for it and probably wont be fixed until 1.0.3 which sucks. For now we have to upload our exported team file manually which is lame.
Here is my thread with a reply from SI.
http://www.ootpdevelopments.com/boar...d.php?t=129229