One site gets past the preview, but does this when I try to save or publish:
>>>>>>>>>>> 403 GET or Other Request Error Logged - November 9, 2013 - 11:41 pm <<<<<<<<<<<
HTTP_USER_AGENT: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36
AND the other site wont preview the url with the embedly plugin, so cant even embed it into post to try and save/publish. And it does not leave an error in the log file.
Video demo of what happens shown here:
And I contacted embedly at the support email address about a month ago with no response.