I'm trying to download a full season.
There 13 captchas to be entered. After having entered approximatly the 13 capchas the message pops up "reconnect" or "cancel".
I have a reconnect script which work fine. After pressing "reconnect" nothing's happened. after another two or three clicks on reconnect the window disappears - and - JD hangs.
JD now has to be exited (sometimes even a restart of the system is necessary) and then (of course) all links captured so far are gone and you have to restart entering all data.
This error is reproducable. Just see that enough links have to be confirmed by entering a capcha and then this "reconnect" window will pop up.
So far I was never able to continue downloading when this window has popped up.

Please, disable jD's automatic reconnect feature (button in jD's toolbar) and try to download those files again.

If you still can't download, please, execute File -> Restore JD.