Same issue here.
Using --scan --refresh --force --section ## --directory /my/directory/path/ causes Plex Media Scanner to refresh the whole section instead of just the directory path.
Is it possible to force refresh just the directory path ?
Unfortunately I wasnât able to make it work using --directory but thanks to @pshanewâs response on another topic, I found out itâs possible to force a refresh on a single TV Show or Movie using --item.