Some more bugreports...
1. Clear all index (also files.idx). Open Music/Albums while media is indexing. No elements found (which is correct). Indexing finishes. Go up one level and back to Albums. Still no media found.
2. For some FLAC files tags are not read. All the tags are 'unspecified', meanwhile for other FLAC files everything is correct and in default mediaplayer tags for all files are read correctly.
3. Again Albums: while loading albums' covers going in some album and back stops cover thumbnailing, but not all of the thumbs created, so thumbnailing does not continue. If I go one level up (to Music) and back to Albums thumbnailing continues, but it skips the album, on which it stopped, even though cover art for it exists.