Check to which interface/IP address your torrent client binds. Set it to "Connexion au réseau local" or "TAP-Windows Adapter v9", whatever it shows up as. In qBittorrent you can set this in the Advanced section of its settings.
It seems you didn't turn this feature on . It'll also still be perfectly possible to torrent with this turned on. On ipleak, you can similarly download a test torrent to confirm this.
Chances are it's not only the torrent client leaking, but all applications, in which case a support file from Eddie would help. In Logs tab, click the lifebelt icon and paste or upload the output here.