Error: "No document selected" when preview a view

I created a categorized view in a database with one column for the subject. Documents were showing as expected, so after saving I clicked the preview in notes button.

The notes client is only showing a grey background with the statement: No document selected where the view should be.

If I place the view in a frame, I can open the frame and see the view.

I have checked, there is no code in any of the opening events in the view or the database.

I know that I am missing something, I’m just not seeing it.