[sba923]

First finding: when Kodi doesn't show the album art for an album (I've seen the album art for some album, and later on it was no longer shown for the same album), Kodi attempts to retrieve the album art as follows:

http://192.168.1.3:9000/disk/DLNA-PNJPEG...defaa/A/O0$1$8I1819659.jpg?scale=1920x1080

TwonkyServer returns a dummy thumbnail in that case.

For the situations where I do get album art displayed properly, the URL is something like:

http://192.168.1.3:9000/disk/DLNA-PNJPEG...defaa/A/O0$1$8I1819659.jpg?scale=org

Wireshark seems to indicate the URI is what TwonkyServer actually returns:

 <upnp:albumArtURI>http://192.168.1.3:9000/disk/DLNA-PNJPEG_TN-OP01-CI1-FLAGS00d00000/defaa/C/O0$1$11$117$216$3575$5528.jpg?scale=1920x1080</upnp:albumArtURI>

When I use VLC or Windows Media Player as the UPnP client I see data such as:

<upnp:albumArtURI dlna:profileID="JPEG_TN" >http://192.168.1.3:9000/disk/DLNA-PNJPEG_TN-OP01-CI1-FLAGS00d00000/defaa/A/O0$1$8I2098955.jpg?scale=org</upnp:albumArtURI>

What in Kodi could cause TwonkyServer to return "scaled to 1920x1080" thumbnails (which doesn't make any sense if you ask me)?