qBittorrent official forums

I never had the feature "Delete .torrent files afterwards" enabled in qB until just now. I'm surmising that this feature, when enabled, means qB will delete the downloaded .torrent file after all the files in the associated torrent have been d/l. Well, I've been putzing with this feature for almost 2 hours now and it's not doing what I believe it should. Are there any certain parameters needed for this feature to work? Thanks.