Any ideas why this would happen?
I saw this similar post - I tried putting one of our site’s URLs in the Twitter card validator and got back
“ERROR: Failed to fetch page due to: HttpConnectionTimeout”
@aaronbcowan, FYI, I’ve updated the curatescape_utility script to clear the contents of robots.txt each time it is run. If you already use this script to keep plugins and themes up to date, you can now also use it to complete this task as well, which should make things a little easier to manage (since auto-updaters will restore robots.txt to its default state).