[v3] Error message when right clicking on (+) tab symbol

[Lazulite]

This is the button I'm talking about: http://imgur.com/Iokfhql
Here is the message:

MusicBee v3.0.5862.39843 (Win10.0), 20 jan 2016 13:27:

System.ArgumentOutOfRangeException: O índice estava fora do intervalo. Tem de ser não negativo e inferior ao tamanho da colecção.
Nome do parâmetro: index
   em System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
   em MusicBee.MusicBeeMain.#=qgX36jpf4hnB86rzuyfX1rPvehN8$YfOc07g5ziP0Up0=()
   em MusicBee.MusicBeeMain.NavigationHeader.#=qXTxJeStqXBEgZX3auaNmBQ==(Int32 #=qppMqXckKbxMPJKjZyPyDEQ==)
   em MusicBee.MusicBeeMain.NavigationHeader.#=qMZGyN7I8XbCX6o6zUHu$kg==(MouseEventArgs #=qPphfixBs9dCqakgxrq5Oeg==)
   em MusicBee.MusicBeeMain.OnMouseDown(MouseEventArgs #=q1NaH6n2KCSlZ60f7uCKuAw==)
   em System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
   em System.Windows.Forms.Control.WndProc(Message& m)
   em System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   em System.Windows.Forms.Form.WndProc(Message& m)
   em #=qyr8wH4AwWrqb7lu0Vh8nLvy3l6W3ZD5QnOJn89pe0CQ=.WndProc(Message& #=qxoszZsliOkgGz_IRibUwHA==)
   em MusicBee.MusicBeeMain.WndProc(Message& #=qte7qrPSkCEl6GfMu8cNo4g==)
   em System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   em System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   em System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

[phred]

Confirmed

[Steven]

thats fixed for the next update

[Steven]

http://musicbee.niblseed.com/V3_0/MusicBee3_Patched.zip