I don't know what I've done and I think I've looked at every other related post... Out of nowhere there is no longer the "Edit in Cornerstone" option for posts! There is not Settings>Cornerstone either so I cant check if those have changed. I have checked that the cornerstone add-on is there and enabled. I can edit pages in cornerstone, just not posts. I feel like I accidently hit something, but can't figure out how to get it back.
Thank you for any help!