Using the "hero" block example, the meta_boxes display in the admin area. When content is added the live preview collapse and does not display the LIVE preview. Also, will not display on the front end. It looks like the data is being saved to the db.
I noticed there was a recent update. Is there a way to get a back version 1.0.2 for troubleshooting?
I have a fresh install listed below. you should be able to reproduce the error on the sample page.