I'm working on an epub project with indesign. The epub I'm making is reflowable. I've made the cover straight in indesign with rectangles, lines and text. Then I've grouped the whole set and rasterized it in object export options and in epub settings I've selected rasterize first page for cover. I end up with a cover, that's quite as it should be, but in addition there's some nonspesific graphic after some empty space (after one or two "pages"). I haven't been able to figure out, how to fix this problem. I'll be veri grateful for your help.