I'm a new user and just starting new case. I created an initial section, added a question and a picture, saved, then did a preview of the case. Everything seeemed fine. Then I added some more sections and questions, and changed the wording of the first question. When I preview the case I still get the first version (no new sections, and the same initial question. I deleted the browser cache, saved and reopened the case, but I still see only the original version of the case when I do a preview.
Addendum:
I did some more modifications to the case, then did another preview, and now the new material appeared. I noted something I wanted to change in this new material, made the change, saved the file, and attempted another preview, but the changes did not appear in the preview. I saved, exited from DiagnosisX Case Authoring, opened the case again and trired another preview, and still see the old version.