LMS doesn't recognize certain folder/titles on storage device

Logitech Media Server Version: 7.9.0 - 1434024570 @ Sun Jun 14 04:05:34 UTC 2015

Hi,

I have a strange behavior with my LMS running on Ubuntu. In the music folder on the storage device I have a folder "Led Zeppelin" and in there a folder "Led Zeppelin II". The later folder won't be recognized when I do a scan of the music lib. I tried renaming the subfolder but that didn't work either. Tried partial and complete rescan from scratch without success.

I can play the titles with Rythmbox on the server.

Any hint welcome. Txs -mgw