I started my blog as a draft and clicked "Save for Later". When I returned to complete the editing, it wasn't in the drafts but it was in Posts. To ensure that it wasn't posted before I completed editing (this has happened before), I set the publishing date for Friday.
Before it's published, I would like to see the preview. When I select Preview Post, I get a page with a "400" error. What's the problem?
Also, why isn't the entry in the Pending area?