Cannot auto use qbittorrent for .torrent files

[techgal]

When I check "use qbittorrent for .torrent files" in Behavior and hit apply, it unchecked. When I do not hit apply but quit prefs it also becomes unchecked.
How can I use qbittorrent for my .torrent files automatically?

[Fuga]

In Finder, pick any .torrent file. Right-Click it (or hit control-click). Choose 'Get Info'. Find the 'Open with' option and choose qBittorrent. Next find the 'Change All' option and click it. wait until done. Time will depend on how many .torrent files you have.

[techgal]

I did that, but the torrent still goes into my  downloads folder and only opens  when selected. But, if I start a new download with utorrent open, that torrent will start downloading immediately to utiorrent even though all torrent files are set to qbittorrent.