Very happy with your program, keep up the good work.
Report below:
what happened was, I added new folders to the music library with drag and drop for an artist that was already displayed (with search box /search results)
then reordering on album name instead of track number caused this "please report" bug
:
MusicBee v3.2.6676.40631 (Win6.1), 23 may 2018 10:13:
System.InvalidOperationException: Collection was modified; enumeration operation may not execute.
at System.Collections.Generic.HashSet`1.Enumerator.MoveNext()
at #=zNMlBgt3ycr6ihXX$gsyFjXc=.#=zYjE6LzBuSJ2x.#=zefMcZEkS7vhNbyRxkQ==(Int32 #=zHojGxrI=, Keys #=zPnDvdDw=)
at #=zNMlBgt3ycr6ihXX$gsyFjXc=.#=zYjE6LzBuSJ2x.OnMouseDown(MouseEventArgs #=zFlervTw=)
at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at #=z5p_iHFA7mRN1vPDInbLAIDw=.WndProc(Message& #=zf70DYDI=)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)