Exception from Word.ApplicationClass.Activedocument all of a sudden

Question

I have this single line of code in a Word VSTO add-in project which used to work but suddenly doesn\'t anymore:

Microsoft.Office.Interop.Word.Document doc =          


        

Answer 1

Microsoft has fixed the issue
Microsoft has released an Office update to fix this issue.
With Office Version 1902 (Build 11328.20158) the issue is fixed on my side.