Piracy

I have something very strange happening. I have a seedbox and I did a manual search/download from Radarr, which initiates the download in qBittorrent as expected. The file begins downloading, and at some point before completion it just disappears completely. The qbit logs just say "torrent removed" without further explanation. I do have qbit set to remove torrents after they hit a defined ratio, but that definitely isn't happening here. Anyone seen this behavior before?