Oh and I probably shoud have added….
You need to put the word screen under the name and the url should be the link that is presented at the bottom in your medial library. Just do a straight copy and pasted.
Hi there- I had the same thing happen to me today and I researched it and made some changes. Try deactivating the Jetpack and deleting it out of your plugins. I made sure all of my plugins were deactivated too. I then went to the post I had done and went to edit. Go to the Screen Options drop down and it should be there. What a cluster – I spent 3 hours on it – unfortunately I love this theme and didn’t want to leave it (perseverance pays off) Good luck!