Reloading
Station information can get stale. Especially Shoutcast invalidates old information frequently. Therefore you have to [Reload] the lists. There is an action button below the menu bar for this. It retrieves the current data from the directory service.
Favicons aren't loaded automatically. There is a menu entry in Channels for that, which works in the background and doesn't display the new icons automatically either. Simply reselect the category/genre in the left pane. Or again, use the station reload button.