The first file in the document does contain the cover image but I placed that manually on the first page of the InDesign document. When exporting from InDesign you have the option to indicate what image should be used as the actual cover, and I chose the same jpg image. My understanding was that it was good practice to not only have a cover image but have that image within the document itself on the first page. When I view the converted mobi file in Kindle Preview, it indicates that the book does have a cover. Perhaps I'm mixing these two covers up in some way? Do you mean a typo? There doesn't seem to be a separate page just displaying the cover image.