I have a strange problem happening today.
I created a new post and saved it as a draft.
I viewed it using the preview feature several times and all was normal.
Then, when I went to preview it again, I got the message " Sorry, no posts matched your criteria".
I deleted the post and started from scratch and now find this happening every time I try to preview a post.
I created a test post called simply "test post" with only a few words of text and still cannot preview it.
My permalink settings are set to Month and Name, i.e. http://www.mysite.com/2010/05/sample-post/
My archives and other posts are displaying correctly.
I've had no problems with permalinks before and I haven't changed any of my permalink or any other settings today. Yet this error message suddenly started to appear every time I try to preview a post.
Any idea what's happening and how to fix this?