Music from login continues to play after login

When logging in successfully through the client, if the client is moved from minimized or switched from focused view on a windows system, the music from the login will remain throughout the duration of the clients life time.

The only known fix from my experience is to close and reopen the client and log in again and wait until the main menu is reached.

This is a annoying flaw in the client start up. Please fix this bug. Thanks.