Keynote thumbnail is different to slide
I'm fairly new to to Keynote and Im using ios12.
When creating slides, thumbnails are produced in a column on the left hand side. I copied a slide, pasted it, and made various changes. So, I expect those changes to be reflected in the new thumbnail. However, the thumbnail fails to refresh?
How do I make the slide and thumbnail look the same?
iPad Pro 11-inch Wi-Fi, Cellular