In regard to my earlier post that was closed before I could finish troubleshooting the issue:
I have tried rebuilding the page in Cornerstone (as suggested by one of you support team members) making sure that the content was not edited somewhere else and this failed. I believe there is a conflict with Cornerstone reading an older database file that is not allowing a page to be rebuilt with a page of the same name. After rebuilding the page I was able and can open it in Cornerstone as a Draft but not as a Published page.