Why is BitTorrent Mainline now downloading when I was previously seeding?
This occurs if any of the files you’re uploading are modified between the time you began seeding and the next time BitTorrent Mainline re-checks the data. If a file changes, it causes the piece(s) containing it to fail the hash check, and accordingly, BitTorrent Mainline will throw the piece out (thus causing the switch to downloading mode). Make sure you do not edit any files you are seeding. If you find yourself forgetting this, then consider setting the files you download to read-only mode once you are in seeding mode. If you did not manually edit any files, then there are some common causes for this problem: • thumbs.db: On some systems, Windows automatically creates and updates a database of thumbnails for the media files in each folder called thumbs.db. If a thumbs.db file is a part of the torrent contents, any updates to it will cause hashfails in BitTorrent Mainline. In Windows Explorer, check the “Folder Options” > “View” > “Do not cache thumbnails” option to prevent this from
