Sage 300C 2020 Web Screens - Reports are Blank

We have Sage 300C 2020.  New to Web Screens, not new to Sage 300.

Trying to print an order confirmation after posting.  Neither the canned report (OECONF01.RPT) or a custom report are displayed.  They both appear to run and return a blank screen.

We have tried three different browsers; Chrome, IE and MS Edge.  All behave the same.  Tried on different PCs.

Thank you!  Mark