Customer scheduled a report to deliver as a PDF. Metadata shows up properly, but the report is blank.
The report does not have a sys_ui_list record for the report list view. This is why the export is blank, so it's almost as if there are no fields selected on the report. The list report is just returning the default view on the view/table.
if you resave the report, by adding fields (Select a few columns and save the report) it will get corrected.