This is a recent problem, one I've not had in many years of BitTorrent use.
When I try to remove a torrent from the application using the remove button, it deletes the downloaded file and the torrent file which are located in different locations.
Nothing has been changed, makes no difference if the file is seeding, stopped or paused, it deletes the entry and file.
This started some hours ago and I've checked the settings and Windows settings.
BitTorrent Pro 7.9.9 on Windows 10 Pro all updates current.