Deluge
I have a torrent, 279GB, which is seeding, but I have no information. Status gives zero information. Details gives only name, hash, and download directory. Files lists nothing, not even the name of the directory. Of course no peers are shown. Forced recheck does nothing.
Should I delete the data and torrent, re-adding it?
Meanwhile, I've found a couple more zombies. These claim to be downloading, with a non-zero Down Speed, yet they provide no information.