P: Enhance Details broken - All-black preview and final render

I was super excited about the new Enhance Details feature rolling out today.  However, something about it refuses to work for me.  When I select the feature on an image, the preview pane only shows a completely black pane on the "Enhanced" version.  Furthermore, when I click the "Enhance" button, processor and GPU rev up and the progress bar moves, but ultimately it only renders a completely black DNG.  This seems to happen on any photo in my collection.  I have verified that I am updated to the correct version of windows, and that I am working on a CR2 RAW file.  Screenshots:

 

Image is not available

Image is not available