Correct the order of shapes on Notes Pages. Fix disappearing notes in presenter view.
Your slide notes text doesn't appear in presenter view.
Presenter view locates the second shape on your notes pages and assumes it's the notes text placeholder.
Usually this is true but not always. If the notes text isn't the second shape on the notes page, presenter view won't display your notes text.
If the second shape on the notes page happens to have text, presenter view will display that instead of the notes text.
Run this macro on your presentation. It will move the notes page slide image and notes text placeholders into the proper order.
Sub FixNotesPageShapeOrder() Dim oSl As Slide Dim oSh As Shape For Each oSl In ActivePresentation.Slides ' Send body text to back first Set oSh = NotesBodyPlaceholder(oSl) If Not oSh Is Nothing Then oSh.ZOrder (msoSendToBack) End If ' Then slide image so Set oSh = NotesSlidePlaceholder(oSl) If Not oSh Is Nothing Then oSh.ZOrder (msoSendToBack) End If ' and now the order is Slide Image, Body Text, Otherstuff Next End Sub Function NotesBodyPlaceholder(oSl As Slide) As Shape Dim oSh As Shape For Each oSh In oSl.NotesPage.Shapes If oSh.Type = msoPlaceholder Then If oSh.PlaceholderFormat.Type = ppPlaceholderBody Then ' Found it! Set NotesBodyPlaceholder = oSh End If End If Next End Function Function NotesSlidePlaceholder(oSl As Slide) As Shape Dim oSh As Shape For Each oSh In oSl.NotesPage.Shapes If oSh.Type = msoPlaceholder Then If oSh.PlaceholderFormat.Type = ppPlaceholderTitle Then ' Found it! Set NotesSlidePlaceholder = oSh End If End If Next End Function
See How do I use VBA code in PowerPoint? to learn how to use this example code.