Partial Scan not working

Looking thru the logs; this looks a little strange to me:

Dec 23, 2018 09:06:24.445 [0x7f2a02d89840] DEBUG -   * Scanning /media/Movies
Dec 23, 2018 09:06:24.453 [0x7f2a02d89840] DEBUG -     * Scanning directory /media/Movies (parent: no)
Dec 23, 2018 09:06:24.454 [0x7f2a02d89840] VERBOSE -     * Noting that '' was updated at 2018-12-23 08:48:04
Dec 23, 2018 09:06:24.454 [0x7f2a02d89840] VERBOSE -     * Taking directory '' (4) out of the map (3928 left)

The top folder is marked as parent: no and subsequent two entries with empty ‘’