Comment 3 for bug 1542175

I can reproduce what you are seeing.

I see a lot of the following in the log:

Thumbnailer: RequestImpl::dbusCallFinished(): D-Bus error: DBusInterface::GetArtistArt(): /: unity::InvalidArgumentException: Thumbnailer::get_artist_art(): artist is empty
ThumbnailerImageResponse::dbusCallFinished(): D-Bus error: "Thumbnailer: RequestImpl::dbusCallFinished(): D-Bus error:DBusInterface::GetArtistArt(): /: unity::InvalidArgumentException: Thumbnailer::get_artist_art(): artist is empty

I also see the refreshes happening in views where the artist name isn't blank. For instance, it refreshes/redraws when I click on a valid Artist in the Artists tab. This would seem to suggest that it isn't just one component misbehaving.

When I run with just my modest music library I also experience the same redraw in the Songs tab, so I suspect it'd be problematic for most users.