I’m sorry that’s not working correctly for you!
I’m sure it’s not anything you’ve done wrong, but there could be something unexpected going on.
Can you check the following things and report back?
- Does it always occur with the same document?
- Does it occur with the example document (created by pressing the question mark icon in the upper left corner)
- Does it occur with a document that is a simple paragraph of text?
- Does it occur when you export to HTML instead of PDF?
- Do you have another machine you can try on?