We have made an epub3 presentation full of rollover functions originally intended for desktop use. This rollover function unfortunately does not work on ipads or tablets. Therefore I am trying to change these rollover functions into clickable functions to make it user-friendly on ipads and tablets. After changing these button functions, I've noticed that certain graphic elements disappear from the screen. These graphic elements does reappear again by refreshing the page. However, I don't think refreshing the page is a pleasant user experience. I've tried numerous efforts from simply changing button functions to starting fresh by making new buttons all over again. Making sure I haven't missed any hidden actions that might confuse the functions. Unfortunately I haven't a clue why certain graphic elements disappear. I look forward to any feedbacks from anyone who also experiences this. Thank you.
Moving to InDesign EPUB forum