Serviio content not exposed / browsable

Hi,

I notice strange behaviour with my serviio 1.1 Pro Version running on a QNAP NAS 119p+: It seems that it's not exposing any browsable content to my DLNA clients (SAMSUNG TV UE40C7700, SAMSUNG BDC5500, SAMSUNG BDC5900 with latest firmware). In my database there are approx 1000 Video-Files (mostly mkv), approx 1000 Pics (JPG) and approx 25000 Audio Tracks (FLAC and mp3). In the logs you can see that they are scanned and attached to the DB. But if I try to access Serviio with one of the above mentioned devides I always receive the message 'No Video on current device. Choose other category.' (resp. No Audio..., No Picture...).

Settings:
- I played a bit with the profiles but currently the default SAMSUNG C/D/E Profile is configured.
- Presentation: All Entries are configured with 'Display categories', Number of items in dynamic categories 10, include patents title is turned on.
- Server is bound to 10.10.10.233

Attached is a log file with DEBUG-Level enabled: After reboot of my NAS and start of Serviio I try to access my Content from my SAMSUNG TV (10.10.10.242). Nothing is shown on my TV...

It worked with Serviio 0.62 and 1.0.1. But before falling back probably someone has a useful hint for me. Any help is apreceated... I switched on my Twonky again but because of usablily and feature set I want to stay with Serviio.

Update: Seems that it's not only a Samsung related issue: When trying to browse with VLC (Generic DLNA Profile) also no content is shown...
Update2: Logfile attached (sorry)