Keynote on iPad doesn't display themes (background) from iMac.

I made a Keynote presentation on my iMac and saved it to iCloud (using Mountain Lion), but when I try opening it on my iPad some some of the background themes don't display. It shows a grey background with a question mark in the middle. Also, shapes with text don't display their background color either, they instead show an "X".

Any help would be appreciated. Thank you.