I just noticed i wasn't getting new fanart for a CD i was playing (and the fanart is available, since i uploaded it). Then i noticed the Errors in the FanartHandler.log (thought they would show up in general error.log also?)
Running custom fork (1.3Final based) which includes a rework of the AudioScrobbler plugin. Could that be related?
18-Feb-2013 14:20:40 Info [ FanartHandler]: Fanart Handler is started. 18-Feb-2013 14:21:24 Error [ FanartRandom]: UpdatePropertiesRandom: System.InvalidOperationException: Collection was modified; enumeration operation may not execute. at System.Collections.Hashtable.HashtableEnumerator.MoveNext() at FanartHandler.FanartRandom.UpdatePropertiesRandom() 18-Feb-2013 14:43:03 Info [ DatabaseManager]: NowPlayingScrape is starting for artist Sandra van Nieuwland. 18-Feb-2013 14:43:03 Error [ DatabaseManager]: NowPlayingScrape: System.TypeLoadException: Could not load type 'MediaPortal.Music.Database.AudioscrobblerBase' from assembly 'Databases, Version=1.2.300.3165, Culture=neutral, PublicKeyToken=null'. at FanartHandler.DatabaseManager.DoScrapeNew(String artist, String album, Boolean externalAccess) at FanartHandler.DatabaseManager.NowPlayingScrape(String artist, String album) 18-Feb-2013 14:43:49 Info [ FanartHandler]: Fanart Handler is stopped.