Error on remap library folders

[See Flat Go]

The assigned drive letter of one of my external drives (the one with my music library) changed. Other than that, paths remain  the same to folders and files. It appears in my play window etc once I've browsed there,  but should I try "Scan Folders for new Files" or  "Locatre Missing Files" (I think), the thing scans forever (large library)

Is this the wrong approach to fix? That is, trying "File/Library?Remap Music Folders"?

Here's  the Unexpected Error C&P:
==============================

MusicBee v3.1.6466.36486 (Win10.0), 13 Nov 2017 22:18:

System.IO.EndOfStreamException: Unable to read beyond the end of the stream.
   at System.IO.BinaryReader.ReadString()
   at #=qb5KhyI0xCFXj17qxyo1$2u4L8VDNtVwnuqZ7Tt1uMs8=.#=q63ZJM9y3O$j5WgTTU$pvMqY0I$lgVJZ3oMqgiL_WJyo=(Stream #=qsnKwmT9RjCiSzsePkkLWpA==, List`1 #=q_1U31qTDlwiyHNdmgL4nuw==, #=q_4WdYpuZTJzcihBlvBq8Fg== #=qz1ZBrWv$6xEw4XB7DsXUMw==)
   at #=qb5KhyI0xCFXj17qxyo1$2u4L8VDNtVwnuqZ7Tt1uMs8=.#=q6EfBKL4DiKq$mgYnTjI0gHOlbUmCVFQyhfNdTBQkgf0=(#=q_4WdYpuZTJzcihBlvBq8Fg== #=qo6deNKg8XaLQ8CHIXnykiw==)
   at #=qb5KhyI0xCFXj17qxyo1$2u4L8VDNtVwnuqZ7Tt1uMs8=.#=qo2b3skw8EUbfWFYzXVrd_g==(SortOrder #=qKNSWAvRQ0MMUwGsQ3Azp7A==)
   at #=qrgWDp705C1UTILZ0HXKEJsz7w0J7j9oIuhIl0M4lfJoCMM24l8Qg_iS3ZrMMXqr3.#=q189fziQL7B1W48GozC1jQg==()
   at #=qrgWDp705C1UTILZ0HXKEJsz7w0J7j9oIuhIl0M4lfJoCMM24l8Qg_iS3ZrMMXqr3..ctor()
   at MusicBee.MusicBeeMain.MainMenu.#=qbEAv_T$KcWGygSapM7CWATC$JcB5AJrJNRPadXIy7cs=(Object #=qPr_P41qZweCziY_dU8L5Dw==, EventArgs #=q_0Kn04wZSBDyj8OrDtYKtg==)
   at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
   at System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
   at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
   at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
   at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
   at System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ToolStrip.WndProc(Message& m)
   at System.Windows.Forms.ToolStripDropDown.WndProc(Message& m)
   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)

[Steven]

all i can for now is one of your .mbp playlists is corrupt