This issue is experienced on Windows 7 x64; however, I suspect it applies to all Windows.
When WWL is started, if a magnet website cannot be connected to, WWL displays the magnet as a small white box. When the magnet website becomes available, the magnet picture is displayed; however, the magnet size remains as the small box. It should expand to the normal specified magnet display size and the locked position of the magnet. At present, the only method to accomplish this is to shut down WWL and restart it.