There's no error message. Just a flash and then a blank screen. I should note that I'm only seeing this if there are results in the notebook. If it's a notebook with no results then I see the contents of the notebook with no results.

Previously I would see the results. Per the documentation "When you export a notebook as HTML, IPython notebook, or archive (DBC), and you have not cleared the results, the results of running the notebook are included." But now I see nothing 😞