This just started happening to me today. When I create a new post I can enter content and save fine (I haven't published yet) but when I add a link (any kind - internal or external) when I try to save the page redirects to one with a URL of:
And I get this message on the page:
404 | Page Not Found!
Sorry, but the page you were looking for is not here.
When I go back to the previous page I am returned to the post-writing page and the link has not been saved.
I've tried logging out and back in, clearing browser cache, etc but no change. I can save any changes fine - just not links.
I've been running this site for years and have never seen this problem. Any clues appreciated!
Thanks .... TC