I have the latest Windows version, and am having problems with the epub cover situation. I’ve tried a bunch of different things – some based on the manual (not helpful) and many based upon responses to your forum for the same problem.
First problem is that the compile to the copy of the epub3 format does not include the first image in the project, nor any of the options there. I’ve tried with both clicking on add html cover and without.
I can add the cover with Calibre but that doesn’t save because it spots other things wrong.
The stock image worked, but I replaced it with the desired one, but it doesn’t find it. I’m thinking it doesn’t like the format (jpg) of the image when it runs through the compile. I need to understand where, precisely, that cover image needs to reside: in the project (it is), saved as an image somewhere else? How do I make this work, please.