We've created this Forum Thread with some workarounds and advice to assist you in publishing you ebook.
Problems up Loading Photos
Some of my photos upload just fine. Others do not. Instead of my photo showing in the side bar, a graphic of a calendar appears making it impossible to add that image to my calendar.
I have double checked my sizing. Everying I've uploaded is 3375 X 2625 at 300 DPI. They are all .jpg's
What is going on?